The CSF 8194B system is a matched left-and-right high-performance intercooler set for the confirmed 2021–2025 Audi C8 RS6 Avant and RS7 Sportback, finished in CSF's Thermal Dispersion Black coating.
Confirmed applications
- 2021–2025 Audi C8 RS6 Avant with turbocharged 4.0L V8
- 2024–2025 Audi C8 RS6 Avant Performance with turbocharged 4.0L V8
- 2025 Audi C8 RS6 Avant GT with turbocharged 4.0L V8
- 2021–2025 Audi C8 RS7 Sportback with turbocharged 4.0L V8
- 2024–2025 Audi C8 RS7 Sportback Performance with turbocharged 4.0L V8
No 2020, 2026 or newer vehicle, RS Q8, other Audi platform, raw-billet part 8194, or unlisted engine is represented by this listing. Confirm the exact vehicle and original-equipment part numbers before ordering or installation.
Manufacturer-published construction
- Matched left-and-right intercooler pair
- PWR two-row rolled-tube cores with inner fins
- CNC-machined billet-aluminum end tanks
- 100% TIG-welded construction
- Original-equipment-style inlet and outlet connections
- Drop-in installation that CSF states requires no vehicle modification
- Made in the USA at PWR North America
- Thermal Dispersion Black finish
Manufacturer test results
CSF publishes gains of 20 wheel horsepower and 18 lb-ft of wheel torque for its Stage 1 stock-tune test, and 10 wheel horsepower and 20 lb-ft of wheel torque for its Stage 2 high-performance-tune test. These are manufacturer test results, not guaranteed results for every vehicle. Actual performance varies with calibration, supporting hardware, vehicle condition, installation, environment, and test method.
Original-equipment references
- Left: Audi 4K0 145 805 P / 4K0145805P
- Right: Audi 4K0 145 806 B / 4K0145806B
Installation
Professional installation is recommended. Verify all connections, sealing surfaces, sensors, brackets, boost-system integrity, and current CSF instructions. Pressure-test the completed charge-air system and inspect it according to current Audi service information before operation.
Regulatory disclosure
CSF's current product page does not publish a separate emissions-compliance classification for part 8194B. Confirm the laws and regulations that apply to the vehicle and destination before ordering or installation.
Warranty
CSF currently lists a limited lifetime warranty for part 8194B. Eligibility, exclusions, proof-of-purchase requirements, and claim handling are governed by CSF's current written warranty terms.