{"title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0","description":"\u003cp\u003ePerformance parts for Porsche 718 GT4, Spyder, and GTS 4.0 models.\u003c\/p\u003e","products":[{"product_id":"porsche-718-gt4-spyder-gts-cayman-bolt-on-exhaust-tips","title":"718 4.0L SOUL Bolt On Exhaust Tips","description":"\u003cp\u003eEasily increase the aesthetics of your 718 GT4 \/ Spyder \/ Cayman GTS with stylish 4″ exhaust tips – available in a variety of styles and finish options – to customize your car to your liking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+ \u003c\/strong\u003e Fits all Porsche 718 GT4 \/ Spyder \/ GTS 4.0L vehicles (2020+)\u003cbr\u003e\n\u003cstrong\u003e+ \u003c\/strong\u003e 5 minute installation: Use an E12 external Torx socket to remove OEM tips, and a 13mm socket to add some SOUL\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eAll Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCONSTRUCTION:  \u003c\/strong\u003eEach tip is built with laser cut .065″ wall, 4″ tubing. 316 stainless steel is our material of choice as it has a higher corrosion resistance than T304L stainless steel. Premium Swivel Exhaust Clamps are included to make sure your tips stay secure in place on both street and track. A tip ring is incorporated into the end of the tip to allow for adjustment of angle to ensure your tips sit perfectly. Every set is rigorously quality-checked prior to shipping and then foam packed to ensure they arrive in perfect condition.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFINISHES: \u003c\/strong\u003e SOUL tips are available in several styles and finishes. Natural finishes options include polishing, hand-brushing, and a matte \u003ca href=\"https:\/\/soulpp.com\/2019\/08\/07\/tech-talk-soul-signature-satin-our-exhaust-finish-explained\/\" target=\"_blank\" rel=\"noopener\"\u003eSignature Satin\u003c\/a\u003e. Looking for something unique? Contact us for custom logos and colors.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Signature Satin \/ Dual Wall Straight Cut","offer_id":45298509086902,"sku":"POR.718GT4.DWST","price":535.0,"currency_code":"USD","in_stock":true},{"title":"Signature Satin \/ Dual Wall Slash Cut","offer_id":45298509119670,"sku":"POR.718GT4.DWSL","price":535.0,"currency_code":"USD","in_stock":true},{"title":"Polished \/ Dual Wall Straight Cut","offer_id":45298509152438,"sku":"POR.718GT4.DWST.POL","price":535.0,"currency_code":"USD","in_stock":true},{"title":"Brushed \/ Dual Wall Straight Cut","offer_id":45298509185206,"sku":"POR.718GT4.DWST.BR","price":775.0,"currency_code":"USD","in_stock":true},{"title":"Polished \/ Dual Wall Slash Cut","offer_id":45298509217974,"sku":"POR.718GT4.DWSL.POL","price":535.0,"currency_code":"USD","in_stock":true},{"title":"Brushed \/ Dual Wall Slash Cut","offer_id":45298509250742,"sku":"POR.718GT4.DWSL.BR","price":775.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black \/ Dual Wall Slash Cut","offer_id":45298509283510,"sku":"POR.718GT4.DWSL.MB","price":775.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black \/ Dual Wall Straight Cut","offer_id":45298509316278,"sku":"POR.718GT4.DWST.MB","price":775.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/Soul-Performance-Products-Porsche-718-GT4-Spyder-GTS-Bolt-On-Tips-Group-Photo-1-17.jpg?v=1785360066"},{"product_id":"porsche-718-gt4-spyder-gts-valve-controller-kit","title":"718 4.0L SOUL Valve Controller Kit","description":"\u003cp\u003eThe SOUL Valve controller kit allows you to overide PSE functionality and force the valves open to prevent random valve opening and closing for an incredible sound controlled by your right foot!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDETAILS:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+\u003c\/strong\u003e  Fits all 4.0L Porsche 718 GT4 \/ RS \/ GTS Cayman and Spyder vehicles (2020+) \u003cstrong\u003e– not direct fitment – requires wiring and sourcing vacuum\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e  All Soul Performance Products components are backed by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003c\/p\u003e\u003cp\u003eThis valve controller kit can be installed to override the PSE system in two different ways.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod A:\u003c\/strong\u003e The first method is a partial PSE override for those that simply want the ability to have the valves open 100% of the time. This will allow you to keep the factory PSE controls unchanged until the valve controller kit is activated. Once activated at the push of a button, it will override the PSE controls completely and keep the valves open 100% of the time. Then at the push of a button and you can revert back to the factory PSE controls to close the valves and have the car operate the valves as normal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMethod B:\u003c\/strong\u003e This second method is a complete PSE override for those that not only want to open the valves 100% of the time, but close them 100% of the time as well to meet sound restrictions at various tracks. Factory PSE programming will not become active unless the valve controller kit is uninstalled from the car. Switching between 100% closed or 100% open will be controlled at the push of a button, no automated valve control is available with this method.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eBoth Methods:\u003c\/strong\u003e Valve actuation can be controlled by the included key fob by pressing buttons, or you can sync the signal of the key fob buttons to two of your three Homelink garage door buttons at which point you no longer need to use the key fobs.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTwo key fobs are included to control the valves. They can also be paired with the HomeLink buttons for remote operation at the press of a button.\u003c\/li\u003e\n\u003cli\u003eAllows you to force the valves open for a glorious sound at all times. From the factory the car can shut the valves based on operating parameters which can not only be unideal, but when running an aftermarket exhaust, can be much more pronounced and undesirable.\u003c\/li\u003e\n\u003cli\u003eAllows you to close the valves at will, which is especially useful to try and meet track decibel restrictions when coming upon a metering station. \u003ca href=\"https:\/\/rennlist.com\/forums\/991-gt3-gt3rs-and-911r\/876050-how-to-building-a-gps-based-pse-valve-controller-for-passing-track-sound-checks.html?fbclid=IwAR2rTDzEVY8vJnbtyqE94xKwBPAeeTXC9MDpJZvEFU_OQeR-G_vFkXS5btI\"\u003eExample 1\u003c\/a\u003e. \u003ca href=\"https:\/\/rennlist.com\/forums\/991-gt3-gt3rs-and-911r\/1043150-how-to-install-gps-based-pse-exhaust-valve-controller-on-a-991-gt3rs.html?fbclid=IwAR0t3IW9oaLVweFZZNhyTez7IOXmP_ISMV-dd7KKEGtUTRjaipeYMWvq1Kc\"\u003eExample 2.\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eWe do NOT recommend running the vehicle aggressively for prolonged periods of time with the valves closed.\u003c\/li\u003e\n\u003cli\u003eRequires wiring for ground and switched 12V power source. Running vacuum to the valve controller solenoid is also required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/soulpp.com\/wp-content\/uploads\/2020\/10\/718-GT4-SOUL-Valve-Controller-Guide-Web.pdf\" target=\"_blank\" rel=\"noopener\"\u003eSEE INSTALLATION GUIDE HERE\u003c\/a\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Default Title","offer_id":45298509349046,"sku":"POR.718GT4.VC","price":295.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/Soul-Performance-Products-Porsche-718-GT4-Valve-Controller-Kit-1-3.jpg?v=1785360067"},{"product_id":"porsche-718-gt4-spyder-gts-cayman-competition-headers","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Competition Headers","description":"\u003cp\u003eOffering the greatest gains in power and sound, SOUL Competition Headers are an excellent performance upgrade from the heavy and restrictive stock manifolds. You’ll notice the weight savings, decreased operating temperatures, and improved engine response all while separating your car from the crowd with the increase in tone.\u003c\/p\u003e\n\u003cp\u003e*\u003cspan\u003eRemoving the catalytic converters from 4.0-liter 718 cars may cause a slight idle “surge” under various conditions due to the emissions programming in ECU revisions. This does not affect the car otherwise and can be remedied through ECU tuning. Please contact \u003c\/span\u003e\u003ca href=\"mailto:sales@soulpp.com\"\u003e\u003cspan\u003esales@soulpp.com\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e to discuss further.*\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDETAILS\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e  Fits all 4.0L Porsche 718 GT4 \/ GTS Cayman and Spyder vehicles (2020+) excluding Clubsport models\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eDirect bolt on installation\u003cbr\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e  Weighs 7.25 lbs \/ 3.2 kg less than factory exhaust components (18.45 lbs vs 25.7 lbs)\u003cbr\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e  All Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDEVELOPMENT AND TESTING:  \u003c\/b\u003eThe factory headers were designed to be easy and cheap to manufacture while also conforming to the performance killing emissions standards of the market. The stock headers use cheap pressed flanges, squashed primary tubing, generic collectors and massive catalytic converters – all robbing your high performance Porsche of the sound and performance it deserves. By smoothing the interface between the flange\/primary tubes, using smooth radius large diameter bends, and implementing a performance oriented collector with merge spikes, we have been able to achieve increased flow, response, and performance with a more aggressive exhaust note to match.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCONSTRUCTION:  \u003c\/b\u003eEach set is assembled in house in the USA out of mandrel bent, thick wall .065″” T304L stainless steel. Back purged TIG welding (with \u003ca href=\"https:\/\/soulpp.com\/2019\/12\/13\/tech-talk-airgas-arcal-prime\/\" target=\"_blank\" rel=\"noopener\"\u003eARCAL™ Prime argon gas\u003c\/a\u003e) ensures proper weld penetration and longevity – crucial for durability on the track. Our cast head flanges allow for a smooth transition from exhaust ports into the runners. Water jet cut exhaust flanges are made to ISO 9001:2015 standards with tolerances of +\/- 0.003 inches for extreme precision. We fabricate these headers using thick gauge aluminum fixtures which act as a great heat sink during the welding process and prevent warping not only of our products, but the fixtures themselves to ensure perfect fitment.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCHECK ENGINE LIGHT?: \u003c\/strong\u003e This product will likely trigger a check engine light due to removal of factory catalytic converters.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBOLT ON AND GO:  \u003c\/b\u003eEvery set is rigorously quality-checked prior to shipping and then foam packed to ensure your order arrives in perfect condition. New high grade hardware and OEM three bolt gaskets are included.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eThis product is not CARB certified and may not be legal for use on emissions controlled vehicles; intended for closed course competition use only\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Default Title","offer_id":45298518393014,"sku":"POR.718GT4.COH","price":3475.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/Soul-Performance-Products-Porsche-718-GT4-Competition-Headers-C-Product-2-3.jpg?v=1785360176"},{"product_id":"porsche-718-gt4-cayman-competition-over-axle-pipes","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Competition Over Axle Pipes","description":"\u003cp\u003eThe factory over axle pipes have dense particulate filters which heavily restrict the tone and character of the 4.0L engine. SOUL Competition Over Axle Pipes unleash an invigorating note befitting of a naturally aspirated Porsche!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+ \u003c\/strong\u003e Fits all 4.0L Porsche 718 GT4 \/ GTS Cayman and Spyder vehicles (2020+) in North America. Most European vehicles have additional monitored ports on the factory pipes\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eAll Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eNo check engine light on North American cars\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eWeighs 10.9 lbs \/ 4.5 kg less than factory exhaust components (12.3 lbs vs 23.2 lb)\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003ch2\u003e\u003cb\u003eDEVELOPMENT\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eWe anxiously analyzed every aspect of the 718 GT4 exhaust system to determine sizing, positioning, and flow characteristics of our components. 3D scanning enabled us to create a perfect bend profile to produce beautiful large radius mandrel bends and a one piece full 2.25″ design. The end result is a highly optimized upgrade for your Porsche for both street and track use! The particulate filters in the factory over axle pipes are the primary area where heat can be stored, upon eliminating them \u003cspan\u003eheat\u003c\/span\u003e shielding is no longer necessary. For those who do want extra protection and a shielding option with added benefits we offer a heat management solution.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eHAND-CRAFTED CONSTRUCTION\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eMandrel bent, durable .065″” T304L stainless steel tubing\u003c\/p\u003e\n\u003cp\u003eOptional 321 stainless steel embossed heat shielding dampens vibrations and encourages thermal stand-off with micro air pockets\u003c\/p\u003e\n\u003cp\u003eBack purged TIG welding (with \u003ca href=\"https:\/\/soulpp.com\/2019\/12\/13\/tech-talk-airgas-arcal-prime\/\" target=\"_blank\" rel=\"noopener\"\u003eARCAL™ Prime argon gas\u003c\/a\u003e) ensures proper weld penetration for exceptional strength and longevity\u003c\/p\u003e\n\u003cp\u003eWater jet cut brackets are made to ISO 9001:2015 standards with ultra-tight tolerances of +\/- 0.003 inches for extreme precision\u003c\/p\u003e\n\u003cp\u003eFabricated using thick-gauge aluminum fixtures that act as a heat sink during the welding process to prevent any warpage\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch2\u003e\u003cb\u003eBOLT ON AND GO\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eEach set is rigorously quality-checked, tested in a fixture to guarantee fitment, and then foam packed to ensure they arrive in perfect condition. New high grade hardware is included for installation.\u003c\/p\u003e\n\u003ch2\u003e\u003cb\u003eBACKED BY LIFETIME WARRANTY\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Standard","offer_id":45298518458550,"sku":"POR.718GT4.OP","price":2155.0,"currency_code":"USD","in_stock":true},{"title":"Yes","offer_id":45298518491318,"sku":"POR.718GT4.OP.JH","price":2635.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/Soul-Performance-Products-Porsche-718-GT4-Overaxle-Pipes-Product-7.webp?v=1785360176"},{"product_id":"porsche-718-gt4-cayman-race-exhaust","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Race Exhaust System","description":"\u003cp\u003eUnleash an incredible sound from the 718 GT4’s 4.0L engine with a track-minded, free flowing 2.5″ combination over axle pipe and rear exhaust system.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+  \u003c\/strong\u003eFits all Porsche 718 GT4 \/ Spyder \/ GTS 4.0L vehicles (2020+) in North America. European vehicles use a different mounting style than North American vehicles. Contact us for a European conversion kit.\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eNo check engine light on North American cars\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eWeighs up to 29.9 lbs \/ 13.5 kg less than factory exhaust components (27.5 lbs Non-Resonated vs 39.35 lbs Resonated w\/ drone canisters vs 57.4 lb Factory)\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eAll Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDEVELOPMENT:\u003c\/b\u003e\u003cspan\u003e Exhaust upgrades tailored to the GT4 platform will naturally focus on maximizing its motorsports character, and our Race Exhaust does so by redesigning the system after the headers to deliver optimal exhaust flow through the tips. The factory dual-exit\/entry flanges connecting the Over Axle Pipes and PSE rear muffler limit tubing diameter to 2.25”, but the SOUL Race Exhaust System maintains 2.5” on either side and longer piping and a bespoke X-pipe produces a smoother and higher-pitched sound that was familiar to previous iterations of the GT4 and Boxster Spyder. Durable race resonators refine that aggressive exhaust note, and coupled with the drone canisters we developed for the GT4 RS, reduce drone to a comfortable level. A non-resonated version is available for drivers looking for maximum sound and weight savings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePOWER: \u003c\/strong\u003eBelow are the unedited, straight from the Dyno Jet dyno results as conducted by Jotech Motorsports with before and after runs on a 718 GT4. Max power gains of 30.7 whp and 16.1 ft-lbs of torque come in quickly and hold until redline for a noticeable increase in driving performance. An ECU tune would further take advantage of the increased flow and unlock greater gains.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCONSTRUCTION:  \u003c\/b\u003eEach system is assembled in house in the USA out of mandrel bent, thick wall .065″” T304L stainless steel. Back purged TIG welding (with \u003ca href=\"https:\/\/soulpp.com\/2019\/12\/13\/tech-talk-airgas-arcal-prime\/\" target=\"_blank\" rel=\"noopener\"\u003eARCAL™ Prime argon ga\u003c\/a\u003es) ensures proper weld penetration and longevity. Water jet cut flanges are made to ISO 9001:2015 standards with tolerances of +\/- 0.003 inches for extreme precision. We fabricate these over axle pipes using thick gauge aluminum fixtures which act as a great heat sink during the welding process and prevent warping not only of our products, but the fixtures themselves to ensure perfect fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBOLT ON AND GO:  \u003c\/b\u003eEvery component is rigorously quality-checked, tested in a fixture to guarantee fitment, and then foam packed to ensure they arrive in perfect condition. New high grade hardware and four OEM Porsche gaskets are included for installation.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003c\/div\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"No \/ Reuse OEM \/ Reuse OEM","offer_id":45298518556854,"sku":"POR.718GT4.RE","price":3475.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Polished \/ Dual Wall Straight Cut","offer_id":45298518589622,"sku":"POR.718GT4.RE.DWST.POL","price":3715.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Brushed \/ Dual Wall Straight Cut","offer_id":45298518622390,"sku":"POR.718GT4.RE.DWST.BR","price":3895.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Matte Black \/ Dual Wall Straight Cut","offer_id":45298518655158,"sku":"POR.718GT4.RE.DWST.MB","price":3895.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Signature Satin \/ Dual Wall Straight Cut","offer_id":45298518687926,"sku":"POR.718GT4.RE.DWST","price":3715.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Polished \/ Dual Wall Slash Cut","offer_id":45298518720694,"sku":"POR.718GT4.RE.DWSL.POL","price":3715.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Brushed \/ Dual Wall Slash Cut","offer_id":45298518753462,"sku":"POR.718GT4.RE.DWSL.BR","price":3895.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Matte Black \/ Dual Wall Slash Cut","offer_id":45298518786230,"sku":"POR.718GT4.RE.DWSL.MB","price":3895.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Signature Satin \/ Dual Wall Slash Cut","offer_id":45298518818998,"sku":"POR.718GT4.RE.DWSL","price":3715.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Reuse OEM \/ Reuse OEM","offer_id":45298518851766,"sku":"POR.718GT4.RER","price":4715.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Polished \/ Dual Wall Straight Cut","offer_id":45298518884534,"sku":"POR.718GT4.RER.DWST.POL","price":5015.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Brushed \/ Dual Wall Straight Cut","offer_id":45298518917302,"sku":"POR.718GT4.RER.DWST.BR","price":5135.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Matte Black \/ Dual Wall Straight Cut","offer_id":45298518950070,"sku":"POR.718GT4.RER.DWST.MB","price":5135.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Signature Satin \/ Dual Wall Straight Cut","offer_id":45298518982838,"sku":"POR.718GT4.RER.DWST","price":5015.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Polished \/ Dual Wall Slash Cut","offer_id":45298519015606,"sku":"POR.718GT4.RER.DWSL.POL","price":5015.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Brushed \/ Dual Wall Slash Cut","offer_id":45298519048374,"sku":"POR.718GT4.RER.DWSL.BR","price":5135.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Matte Black \/ Dual Wall Slash Cut","offer_id":45298519081142,"sku":"POR.718GT4.RER.DWSL.MB","price":5135.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Signature Satin \/ Dual Wall Slash Cut","offer_id":45298519113910,"sku":"POR.718GT4.RER.DWSL","price":5015.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/SOUL-Performance-Products-718-GT4-Race-Exhaust-Package-1-2.jpg?v=1785360177"},{"product_id":"porsche-718-gt4-spyder-gts-4-0l-soul-race-x-pipe-exhaust","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Race X-Pipe Exhaust","description":"\u003cp\u003eThe 718’s 4.0-liter flat-six brings out the mid-engined sports car’s traditionally pure and engaging character, and our Race X-Pipe Exhaust accentuates it with proper motorsports tone. This lightweight muffler replacement mates with the factory Over Axle Pipes, delivering immediate sound quality with no concerns for emissions, fitment or performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+  \u003c\/strong\u003eFits all Porsche 718 GT4 \/ Spyder \/ GTS 4.0L vehicles (2020+)\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eNo Check Engine Light\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eAll SOUL Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Matte Black \/ Dual Wall Straight Cut","offer_id":45298519179446,"sku":"POR.718GT4.XP.DWST.MB","price":3270.0,"currency_code":"USD","in_stock":true},{"title":"Polished \/ Dual Wall Straight Cut","offer_id":45298519212214,"sku":"POR.718GT4.XP.DWST.POL","price":3150.0,"currency_code":"USD","in_stock":true},{"title":"Brushed \/ Dual Wall Straight Cut","offer_id":45298519244982,"sku":"POR.718GT4.XP.DWST.BR","price":3270.0,"currency_code":"USD","in_stock":true},{"title":"Signature Satin \/ Dual Wall Straight Cut","offer_id":45298519277750,"sku":"POR.718GT4.XP.DWST","price":3150.0,"currency_code":"USD","in_stock":true},{"title":"Polished \/ Dual Wall Slash Cut","offer_id":45298519310518,"sku":"POR.718GT4.XP.DWSL.POL","price":3150.0,"currency_code":"USD","in_stock":true},{"title":"Brushed \/ Dual Wall Slash Cut","offer_id":45298519343286,"sku":"POR.718GT4.XP.DWSL.BR","price":3270.0,"currency_code":"USD","in_stock":true},{"title":"Signature Satin \/ Dual Wall Slash Cut","offer_id":45298519376054,"sku":"POR.718GT4.XP.DWSL","price":3150.0,"currency_code":"USD","in_stock":true},{"title":"Matte Black \/ Dual Wall Slash Cut","offer_id":45298519408822,"sku":"POR.718GT4.XP.DWSL.MB","price":3270.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/SOUL-Performance-Products-Porsche-718-Race-X-Pipe-1.jpg?v=1785360179"},{"product_id":"porsche-718-gt4-spyder-gts-4-0l-soul-resonated-over-axle-pipes","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Resonated Over Axle Pipes","description":"\u003cp\u003eThe factory over axle pipes have dense particulate filters which heavily restrict the tone and character of the 4.0L engine. SOUL Resonated Over Axle Pipes increase performance while reducing rasp and drone when paired with other exhaust upgrades.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+ \u003c\/strong\u003e Fits all 4.0L Porsche 718 GT4 \/ GTS Cayman and Spyder vehicles (2020+) in North America. Most European vehicles have additional monitored ports on the factory pipes.\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eAll Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eNo check engine light on North American cars\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eWeighs 9.4 lbs \/ 4.2 kg less than factory exhaust components (13.8 lbs vs 23.2 lb)\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003ch2\u003e\u003cb\u003eDEVELOPMENT\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eWe analyzed every aspect of the 718 GT4 exhaust system to determine sizing, positioning, and flow characteristics of our components. 3D scanning enabled us to create a perfect bend profile to produce beautiful large radius mandrel bends and a one piece full 2.25″ design. The end result is a highly optimized upgrade for your Porsche for both street and track use! Many enthusiasts modify multiple portions of the exhaust system in pursuit of power and tone which can increase the volume and cabin presence beyond their preference. The primary benefit of the resonated version of our over axle pipes is gaining the performance increase of removing OPF filters without increasing volume to a great degree, whereas the \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-competition-over-axle-pipes\"\u003eCompetition Over Axle Pipes\u003c\/a\u003e offer bolder tone and volume. If you’re running aftermarket headers or rear exhaust our straight through race resonators take the edge off the overall volume and reduce bass \/ resonance at low RPM for a more refined experience.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch2\u003e\u003cb\u003eCONSTRUCTION\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp\u003eMandrel bent, durable .065″” T304L stainless steel tubing\u003c\/p\u003e\n\u003cp\u003eOptional 321 stainless steel embossed heat shielding dampens vibrations and encourages thermal stand-off with micro air pockets\u003c\/p\u003e\n\u003cp\u003eBack purged TIG welding (with \u003ca href=\"https:\/\/soulpp.com\/2019\/12\/13\/tech-talk-airgas-arcal-prime\/\" target=\"_blank\" rel=\"noopener\"\u003eARCAL™ Prime argon gas\u003c\/a\u003e) ensures proper weld penetration for exceptional strength and longevity\u003c\/p\u003e\n\u003cp\u003eWater jet cut brackets are made to ISO 9001:2015 standards with ultra-tight tolerances of +\/- 0.003 inches for extreme precision\u003c\/p\u003e\n\u003cp\u003eFabricated using thick-gauge aluminum fixtures that act as a heat sink during the welding process to prevent any warpage\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/soulpp.com\/wp-content\/uploads\/2026\/02\/Soul-Performance-Products-Porsche-718-GT4-Resonated-Overaxle-Pipes-Resonator-Interior.jpg\" target=\"_blank\" rel=\"noopener\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBOLT ON AND GO:  \u003c\/b\u003eEach set is rigorously quality-checked, tested in a fixture to guarantee fitment, and then foam packed to ensure they arrive in perfect condition. New high grade hardware is included for installation.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"No","offer_id":45298519507126,"sku":"POR.718GT4.ROP","price":2635.0,"currency_code":"USD","in_stock":true},{"title":"Yes","offer_id":45298519539894,"sku":"POR.718GT4.ROP.JH","price":3115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/Soul-Performance-Products-Porsche-718-GT4-Resonated-Overaxle-Pipes-Product-1-3.jpg?v=1785360181"},{"product_id":"porsche-718-gt4-spyder-gts-cayman-sport-package","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Sport Package","description":"\u003cp\u003eTwo exhaust upgrades combine for a superior sound! With two distinct tones, SOUL’s Valved Exhaust offers a significant sound improvement over factory PSE through a bespoke X-pipe muffler and anti-drone design features. Valves open mode elicits a smooth, sporty GT3-like tone for an invigorating driving experience. Valves closed mode calms down the volume for refined cruising with just enough presence to be appreciated. SOUL Competition Over Axle Pipes turn up the excitement further and improve the quality of the 4.0L exhaust sound.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePACKAGE INCLUDES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-valved-exhaust-system\"\u003eSoul Performance Products Valved Exhaust System\u003c\/a\u003e\u003cbr\u003e\n\u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-competition-over-axle-pipes\"\u003eSoul Performance Products Competition Over Axle Pipes\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+ \u003c\/strong\u003e Fits all Porsche 718 GT4 \/ Spyder \/ GTS 4.0L vehicles (2020+) in North America. European vehicles use a different mounting style than North American vehicles. Contact us for a European conversion kit (at additional cost).\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eWeighs approximately 11 lbs \/ 4.9 kg less than OEM\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eAll Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eDEVELOPMENT GOALS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eImprove upon the factory design and achieve a throatier \/ smoother \/ higher pitched tone. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncrease the presence and character of the exhaust note in the cabin while maintaining a reasonable level of resonance \/ drone while driving in both the valves closed and open modes through our signature drone fighting capabilities. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeighten aggressiveness with valves open while maintaining an overall sound level potential \/ quality that can still be reasonably driven on the street in combination with other complimentary aftermarket exhaust components – such as competition over axle pipes and header replacements.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOffer the ability to notably reduce the sound level of the car outside to fly under the radar when necessary.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAchieve an effective delta in sound between both modes for two usable, well engineered experiences – mild and wild. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eRESEARCH \u0026amp; DEVELOPMENT\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eWith valves open, our Valved Exhaust System follows a similar design to our \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-race-exhaust\"\u003eRace Exhaust System\u003c\/a\u003e through an X-Pipe that merges the exhaust flow for a higher pitched, smooth sound. With valves closed, the exhaust is routed through smaller piping and a bespoke SOUL muffler we designed to fit with the X-Pipe in the confined space above the rear diffuser and meet our sound goals. This muffler was crafted to match our high standard of drone fighting mufflers like the rest of our existing Boxster \/ Cayman line that we have become known for. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInternally this muffler is quite unique. It has little to no restriction in the flow path, using straight through piping that is perforated to allow exhaust gasses to escape and become muffled in the surrounding packing material of the muffler body. We incorporated a second internal X-pipe to allow the exhaust flow to merge smoothly. These characteristics combined were crucial towards reducing and smoothing out the drone in the 1,800-3,000rpm range while enhancing that higher pitched note we were after in both the valves closed and open conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDRIVING IMPRESSIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eWe found that the particulate filters in the over axle pipes put a big damper on the overall sound level and how it carries into the cabin. Think of it like a cork in the middle of the exhaust, letting a PSE muffler replacement tease you but not giving you the full experience. Combining our \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-valved-exhaust-system\"\u003eValved Exhaust System\u003c\/a\u003e with our \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-competition-over-axle-pipes\"\u003eCompetition Over Axle Pipes\u003c\/a\u003e is when the skies open up, the sun shines down and the Porsche Gods have blessed us with the sound we’ve all been waiting for. Inside and outside the car, windows up and down, the experience is nothing short of transformational. At wide open throttle it sounds like a weapons grade symphony. Very reminiscent of a GT3 at 9k, and arguably better than any stock GT3 you’ll ever hear on the street. Ditching the factory over axle pipes finally allows the car to have some burble on deceleration but nothing too over the top, just enough and just right. When you do a hard shift, a visceral crack erupts to really put a smile on your face. Not like a shotgun blast going off, more like a reward for actually driving the car how it’s meant to be driven. When you’re off throttle cruising around, it’s relatively docile and comfortable (that secondary flow path at work). If you want to fly under the radar and significantly cut down on sound level outside the car, you simply close the valves and away you go in stealth mode. However, even with valves closed the tone and character of the exhaust is still there, not dead muted like the PSE muffler. It has cabin presence, some ever so mild drone\/resonance in low rpms that we consider quite reasonable compared to the other configurations we’ve tested – even with valves open it’s quite reasonable. We’d almost say it’s more a character of the system and it’d be a shame if there wasn’t any to tease you into squeezing on the gas to hear more of it. We highly recommend installing a SOUL \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-spyder-gts-valve-controller-kit\"\u003eValve Controller Kit\u003c\/a\u003e to override the PSE programming at your convenience, and hear what it has to offer under 4-5k rpm in the first few gears – it’s worth it!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCONSTRUCTION:  \u003c\/b\u003eEach system is assembled in house in the USA out of mandrel bent, thick wall .065″” T304L stainless steel. Back purged TIG welding (with \u003ca href=\"https:\/\/soulpp.com\/2019\/12\/13\/tech-talk-airgas-arcal-prime\/\" target=\"_blank\" rel=\"noopener\"\u003eARCAL™ Prime argon ga\u003c\/a\u003es) ensures proper weld penetration and longevity. Water jet cut flanges are made to ISO 9001:2015 standards with tolerances of +\/- 0.003 inches for extreme precision. We fabricate each exhaust using thick gauge aluminum fixtures which act as a great heat sink during the welding process and prevent warping not only of our products, but the fixtures themselves to ensure perfect fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Yes \/ Reuse OEM \/ Reuse OEM \/ Manual","offer_id":45298519605430,"sku":"POR.718GT4.SPPKG.VC","price":7550.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Reuse OEM \/ Reuse OEM \/ Manual","offer_id":45298519638198,"sku":"POR.718GT4.SPPKG","price":7430.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Polished \/ Dual Wall Straight Cut \/ Manual","offer_id":45298519670966,"sku":"POR.718GT4.SPPKG.DWST.POL.VC","price":7850.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Polished \/ Dual Wall Straight Cut \/ Manual","offer_id":45298519703734,"sku":"POR.718GT4.SPPKG.DWST.POL","price":7670.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Brushed \/ Dual Wall Straight Cut \/ Manual","offer_id":45298519736502,"sku":"POR.718GT4.SPPKG.DWST.BR.VC","price":7970.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Dual Wall Straight Cut \/ Manual","offer_id":45298519769270,"sku":"POR.718GT4.SPPKG.DWST.MB.VC","price":7970.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Dual Wall Straight Cut \/ Manual","offer_id":45298519802038,"sku":"POR.718GT4.SPPKG.DWST.MB","price":7850.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Signature Satin \/ Dual Wall Straight Cut \/ Manual","offer_id":45298519834806,"sku":"POR.718GT4.SPPKG.DWST.VC","price":7850.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Signature Satin \/ Dual Wall Straight Cut \/ Manual","offer_id":45298519867574,"sku":"POR.718GT4.SPPKG.DWST","price":7670.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Polished \/ Dual Wall Slash Cut \/ Manual","offer_id":45298519900342,"sku":"POR.718GT4.SPPKG.DWSL.POL.VC","price":7850.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Polished \/ Dual Wall Slash Cut \/ Manual","offer_id":45298519933110,"sku":"POR.718GT4.SPPKG.DWSL.POL","price":7670.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Brushed \/ Dual Wall Slash Cut \/ Manual","offer_id":45298519965878,"sku":"POR.718GT4.SPPKG.DWSL.BR.VC","price":7970.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Brushed \/ Dual Wall Slash Cut \/ Manual","offer_id":45298519998646,"sku":"POR.718GT4.SPPKG.DWSL.BR","price":7850.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520031414,"sku":"POR.718GT4.SPPKG.DWSL.MB.VC","price":7970.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520064182,"sku":"POR.718GT4.SPPKG.DWSL.MB","price":7850.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Signature Satin \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520096950,"sku":"POR.718GT4.SPPKG.DWSL.VC","price":7850.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Signature Satin \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520129718,"sku":"POR.718GT4.SPPKG.DWSL","price":7670.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/SOUL-Performance-Products-718-4-Liter-Sport-Package-scaled-5.jpg?v=1785360182"},{"product_id":"porsche-718-gt4-cayman-street-headers","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Street Headers","description":"\u003cp\u003eSoul Performance Products Street Headers are built around large diameter, free-flowing catalytic converters with optimized cast flanges and runners for maximum gains in power, throttle response, and flat-six engine tone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDETAILS\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e  Fits all 4.0L Porsche 718 GT4 \/ GTS Cayman and Spyder vehicles (2020+)\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eDirect bolt on installation\u003cbr\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e  Weighs 1.51 lbs \/ .6 kg less than factory exhaust components (24.19 lbs vs 25.7 lbs)\u003cbr\u003e\n\u003cstrong\u003e+\u003c\/strong\u003e  All Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003cp\u003e\u003cb\u003eDEVELOPMENT AND TESTING:  \u003c\/b\u003eThe factory headers were designed to be easy and cheap to manufacture while also conforming to the performance killing emissions standards of the market. The stock headers use cheap pressed flanges, squashed primary tubing, subpar collectors and dense catalytic converters – all robbing your high performance Porsche of the sound and performance it deserves. By smoothing the interface between the flange\/primary tubes, using smooth radius large diameter bends, and implementing a performance oriented collector with merge spikes, we have been able to achieve increased flow, response, and performance with a more aggressive exhaust note to match.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/soulpp.com\/wp-content\/uploads\/2026\/02\/Soul-Performance-Products-Porsche-718-GT4-Headers-Flange-Design-Website.jpg\" target=\"_blank\" rel=\"noopener\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCONSTRUCTION:  \u003c\/b\u003eEach set is assembled in house in the USA out of mandrel bent, thick wall .065″” T304L stainless steel. Back purged TIG welding (with \u003ca href=\"https:\/\/soulpp.com\/2019\/12\/13\/tech-talk-airgas-arcal-prime\/\" target=\"_blank\" rel=\"noopener\"\u003eARCAL™ Prime argon gas\u003c\/a\u003e) ensures proper weld penetration and longevity – crucial for durability on the track. Our cast head flanges allow for a smooth transition from exhaust ports into the runners. Water jet cut exhaust flanges are made to ISO 9001:2015 standards with tolerances of +\/- 0.003 inches for extreme precision. We fabricate these headers using thick gauge aluminum fixtures which act as a great heat sink during the welding process and prevent warping not only of our products, but the fixtures themselves to ensure perfect fitment.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/soulpp.com\/wp-content\/uploads\/2026\/02\/Soul-Performance-Products-Porsche-718-GT4-Street-Headers-Development-2.jpg\" target=\"_blank\" rel=\"noopener\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBOLT ON AND GO:  \u003c\/b\u003eEvery set is rigorously quality-checked prior to shipping and then foam packed to ensure your order arrives in perfect condition. New high grade hardware and OEM three bolt gaskets are included.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered for life! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Default Title","offer_id":45298520195254,"sku":"POR.718GT4.STH","price":5275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/SOUL-Performance-Products-Porsche-718-GT4-Street-Headers-1.jpg?v=1785360182"},{"product_id":"porsche-718-gt4-cayman-valved-exhaust-system","title":"Porsche 718 GT4 \/ Spyder \/ GTS 4.0L SOUL Valved Exhaust System","description":"\u003cp\u003eWith two distinct tones, SOUL’s Valved Exhaust offers a significant sound improvement over factory PSE through a bespoke X-pipe muffler and anti-drone design features. Valves open mode elicits a smooth, sporty GT3-like tone for an invigorating driving experience. Valves closed mode calms down the volume for refined cruising with just enough presence to be appreciated. Engineered to pair well and not be overbearing with other aftermarket mods like over axle pipes and headers.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e+ \u003c\/strong\u003e Fits all Porsche 718 GT4 \/ Spyder \/ GTS 4.0L vehicles (2020+) in North America. European vehicles use a different mounting style than North American vehicles. Contact us for a European conversion kit (at additional cost).\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eWeighs approximately the same as OEM PSE (37 lbs)\u003cbr\u003e\n\u003cstrong\u003e+  \u003c\/strong\u003eAll Soul Performance Products exhaust components are backed by the industry’s first and finest \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e for both street and track use\u003cbr\u003e\n\u003cb\u003e+\u003c\/b\u003e  Designed and built in-house at our Willow Grove, PA facility\u003c\/p\u003e\u003ch4\u003e\u003cstrong\u003eDEVELOPMENT GOALS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eImprove upon the factory design and achieve a throatier \/ smoother \/ higher pitched tone. \u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIncrease the presence and character of the exhaust note in the cabin while maintaining a reasonable level of resonance \/ drone while driving in both the valves closed and open modes.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeighten aggressiveness with valves open while maintaining an overall sound level potential \/ quality that can still be reasonably driven on the street in combination with other complimentary aftermarket exhaust components.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOffer the ability to notably reduce the sound level of the car outside to fly under the radar when necessary.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAchieve an effective delta in sound between both modes for two usable, well engineered experiences – mild and wild. \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cstrong\u003eRESEARCH \u0026amp; DEVELOPMENT\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eWith valves open, our Valved Exhaust System follows a similar design to our \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-race-exhaust\"\u003eRace Exhaust System\u003c\/a\u003e through an X-Pipe that merges the exhaust flow for a higher pitched, smooth sound. With valves closed, the exhaust is routed through smaller piping and a bespoke SOUL muffler we designed to fit with the X-Pipe in the confined space above the rear diffuser and meet our sound goals. This muffler was crafted to match our high standard of drone fighting mufflers like the rest of our existing Boxster \/ Cayman line that we have become known for. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eInternally this muffler is quite unique. It has little to no restriction in the flow path, using straight through piping that is perforated to allow exhaust gasses to escape and become muffled in the surrounding packing material of the muffler body. We incorporated a second internal X-pipe to allow the exhaust flow to merge smoothly. These characteristics combined were crucial towards reducing and smoothing out the drone in the 1,800-3,000rpm range while enhancing that higher pitched note we were after in both the valves closed and open conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cstrong\u003eDRIVING IMPRESSIONS\u003c\/strong\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003eChanging just the PSE muffler with stock over axle pipes offers a superb change in tone. It is smoother and higher pitched, more in line with the flat 6 character we’ve come to appreciate with previous generations of Boxster \/ Cayman. Expect a smooth transition between valves closed and open modes. With the rest of the exhaust stock, the overall sound level at WOT with valves open may not sound dramatically increased. This is due to how aggressive the flow path is with valves open on the new 718’s PSE muffler. However, on our system the larger tubing diameter, distance traveled, and blending of the X-pipe gives the sound more depth and changes the tone to a smooth \/ higher pitch song. It sounds incredible especially from the outside, offering a true sporty note one would expect from the high end 4.0L. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eCombining our Valved Exhaust System with our \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-cayman-competition-over-axle-pipes\"\u003eCompetition Over Axle Pipes\u003c\/a\u003e is when the skies open up, the sun shines down and the Porsche Gods have blessed us with the sound we’ve all been waiting for. Inside and outside the car, windows up and down, the experience is nothing short of transformational. Very reminiscent of a GT3 at 9k, and arguably better than any stock GT3 you’ll ever hear on the street. Ditching the factory over axle pipes finally allows the car to have some burble on deceleration but nothing too over the top, just enough and just right. When you do a hard shift, a visceral crack erupts to really put a smile on your face. When you’re off throttle cruising around, it’s relatively docile and comfortable (that secondary flow path at work). If you want to fly under the radar and significantly cut down on sound level outside the car, you simply close the valves and away you go in stealth mode. We highly recommend installing a SOUL \u003ca href=\"https:\/\/eurocustomspr.com\/products\/porsche-718-gt4-spyder-gts-valve-controller-kit\"\u003eValve Controller Kit\u003c\/a\u003e to override the PSE programming at your convenience, and hear what it has to offer under 4-5k rpm in the first few gears – it’s worth it!\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eCONSTRUCTION:  \u003c\/b\u003eEach system is assembled in house in the USA out of mandrel bent, thick wall .065″” T304L stainless steel. Back purged TIG welding (with \u003ca href=\"https:\/\/soulpp.com\/2019\/12\/13\/tech-talk-airgas-arcal-prime\/\" target=\"_blank\" rel=\"noopener\"\u003eARCAL™ Prime argon ga\u003c\/a\u003es) ensures proper weld penetration and longevity. Water jet cut flanges are made to ISO 9001:2015 standards with tolerances of +\/- 0.003 inches for extreme precision. We fabricate each exhaust using thick gauge aluminum fixtures which act as a great heat sink during the welding process and prevent warping not only of our products, but the fixtures themselves to ensure perfect fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eLIFETIME WARRANTY:  \u003c\/b\u003eEnjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our \u003ca href=\"https:\/\/soulpp.com\/warranty\/\" target=\"_blank\" rel=\"noopener\"\u003eLifetime Warranty\u003c\/a\u003e! Our team will quickly work with you to resolve any issues or answer any questions that you may have.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\u003ch3\u003eAvailability \u0026amp; estimated lead time\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eSpecial-order notice:\u003c\/strong\u003e Most SOUL Performance Products components are built or finished to order. Estimated lead times vary by configuration and production schedule, are estimates only, and are not guaranteed. Contact EuroCustomsPR before ordering if timing is critical.\u003c\/p\u003e","brand":"SOUL Performance Products","offers":[{"title":"Yes \/ Reuse OEM \/ Reuse OEM \/ Manual","offer_id":45298520228022,"sku":"POR.718GT4.VES.VC","price":5395.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Reuse OEM \/ Reuse OEM \/ Manual","offer_id":45298520260790,"sku":"POR.718GT4.VES","price":5275.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Polished \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520293558,"sku":"POR.718GT4.VES.DWST.POL.VC","price":5695.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Polished \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520326326,"sku":"POR.718GT4.VES.DWST.POL","price":5515.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Brushed \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520359094,"sku":"POR.718GT4.VES.DWST.BR.VC","price":5815.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Polished \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520391862,"sku":"POR.718GT4.VES.DWSL.POL","price":5515.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Brushed \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520424630,"sku":"POR.718GT4.VES.DWSL.BR.VC","price":5815.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Brushed \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520457398,"sku":"POR.718GT4.VES.DWSL.BR","price":5695.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Matte Black \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520490166,"sku":"POR.718GT4.VES.DWSL.MB.VC","price":5815.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Matte Black \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520522934,"sku":"POR.718GT4.VES.DWSL.MB","price":5695.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Signature Satin \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520555702,"sku":"POR.718GT4.VES.DWST","price":5515.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Signature Satin \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520588470,"sku":"POR.718GT4.VES.DWST.VC","price":5695.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Signature Satin \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520621238,"sku":"POR.718GT4.VES.DWSL","price":5515.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Signature Satin \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520654006,"sku":"POR.718GT4.VES.DWSL.VC","price":5695.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Brushed \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520686774,"sku":"POR.718GT4.VES.DWST.BR","price":5695.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520719542,"sku":"POR.718GT4.VES.DWST.MB.VC","price":5815.0,"currency_code":"USD","in_stock":true},{"title":"No \/ Dual Wall Straight Cut \/ Manual","offer_id":45298520752310,"sku":"POR.718GT4.VES.DWST.MB","price":5695.0,"currency_code":"USD","in_stock":true},{"title":"Yes \/ Polished \/ Dual Wall Slash Cut \/ Manual","offer_id":45298520785078,"sku":"POR.718GT4.VES.DWSL.POL.VC","price":5695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1553\/5229\/files\/SOUL-Performance-Products-718-4-Liter-Valved-Exhaust-System-1-9.jpg?v=1785360183"}],"url":"https:\/\/eurocustomspr.com\/collections\/porsche-718-gt4-spyder-gts-4-0.oembed","provider":"EuroCustomsPR","version":"1.0","type":"link"}