Porsche 718 GT4 RS / Spyder RS SOUL Street Package

Combining our free-flowing Over Axle Pipes with our Valved Exhaust System eliminates the major bottlenecks in the GT4 RS exhaust flow and extracts the most sound and performance potential for the platform, but still allows for comfortable cruising with the valves closed. Owing to the unique oval design of our Over Axle Pipes and the Valved Exhaust’s x-pipes, this system runs a full 3 inches all the way through, ensuring that the 4.0-liter flat-six realizes its motorsports pedigree in every way.

PACKAGE INCLUDES:

SOUL Porsche 718 GT4 RS / Spyder RS SOUL Valved Exhaust System
SOUL Porsche 718 GT4 RS / Spyder RS SOUL Competition OR Resonated Over Axle Pipes

DETAILS:

+  Fits Porsche 718 GT4 RS / Spyder RS with factory or upgraded headers
+  No check engine light on North American cars, ECU tuning required for European cars
+  All SOUL Performance Products exhaust components are backed by the industry’s first and finest Lifetime Warranty for both street and track use
+  Designed and built in-house at our Willow Grove, PA facility

NOTE: Because of the increased output of the GT3-derived engine in 718 RS models, and the additional heat generated as a result, we strongly recommend applying a thermal management solution to Over Axle Pipe products to protect nearby components and body parts. We offer an efficient and effective wrapping solution in-house.

DEVELOPMENT

Acting on our initial goal of maximizing sound and performance potential from a cat-back exhaust system delivered us immediate results with our Over Axle Pipes and rear exhaust system. But for those who’d like to dial it back when appropriate, a Valved Exhaust System would meet their sound goals with valves open AND valves closed. With a full 3-inch X-Pipe in either valve operating condition, that wonderful high-pitched flat-six sound comes to life but can be suppressed when necessary. Combined with Resonated Over Axle Pipes, that sound can be further amplified along with a boost in performance by uncorking that factory bottleneck. It is a complete package for those who truly want it all. Unfortunately, there was more that it came with: drone.

To drivers who opt for the civility of a Valved Exhaust System, excess drone is not an acceptable byproduct. The GT4 RS’ potent 4.0-liter flat-six brings plenty of it, especially once we’ve turned up the volume on it. Instead of just accepting defeat, we went after a solution, even as it required several evolutions and plenty of testing. Our design of “drone canisters” was finalized and installed as it successfully hit the volume requirements we calculated to target the drone frequencies in the low-to-mid 2,000 RPM range, shifting the drone zone down the rev range and reducing peak frequencies significantly. As a result, drivers can enjoy the motorsports tone that our X-Pipe creates in its fullest expression, or mute it when necessary and cruise comfortably.

Due to the design of the system with these drone canisters, fitment is only possible when combined with aftermarket Over Axle Pipes. Our Street Package pairs our Valved Exhaust System with our Over Axle Pipes for a remarkable change in character and volume with valves open, but drone reduced as much as possible with valves closed for as civilized a cruising experience as we could develop—especially driven in Sport mode where the optimal shift points during typical driving are outside the peak “drone zone.” This package allows the OAPs to be optioned as Competition or Resonated, with the Competition selection offering more overall sound level potential with valves open, closer to the Race Exhaust Package. The Resonated version allows for a more modest sound level potential, additionally reducing the drone level at lower revs and producing a smoother tone.

HAND-CRAFTED CONSTRUCTION

Mandrel bent, durable .065″” T304L stainless steel tubing

Back purged TIG welding (with ARCAL™ Prime argon gas) ensures proper weld penetration for exceptional strength and longevity

Water jet cut brackets are made to ISO 9001:2015 standards with ultra-tight tolerances of +/- 0.003 inches for extreme precision

Fabricated using thick-gauge aluminum fixtures that act as a heat sink during the welding process to prevent any warpage

Optional hand-applied heat shielding prevents radiant heat from shedding into the engine bay

EXHAUST TIP SELECTION

For those looking to maintain the factory appearance, this system can be used with OEM exhaust tips. However, the OEM tips feature a much smaller diameter inlet, requiring the system to be necked down, which introduces a restriction and reduces overall performance. To extract the most from your GT4 RS, we strongly recommend selecting our high-performance exhaust tips, designed to complement the full 3-inch system without any compromises. Choose between double wall tips or our Weissach style stainless steel tips.

BOLT ON AND GO

Every 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 is included for installation.

BACKED BY LIFETIME WARRANTY

Enjoy your SOUL exhaust components with confidence on both the street and track as they are covered by our Lifetime Warranty! Our team will quickly work with you to resolve any issues or answer any questions that you may have.

Availability & estimated lead time

Special-order notice: 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.