Fabspeed Sport Catalyst Downpipes for Audi RS6 and RS7 (C8)

Replace the C8 RS6/RS7 original catalyst sections with HJS downpipe assemblies. Confirm market-specific particulate-filter equipment rather than applying a USA fault-light statement to every car. Based in Fort Washington, Pennsylvania, Fabspeed Motorsport designs exhaust, intake and ECU-tuning products for Porsche and other sports cars. Development includes evaluation on a dynamometer, on the road and at the racetrack.

Technical Details

• Manufacturer product reference: FS.AUD.RSXC8.SC.
• HJS 200-cell metallic catalyst cores.
• Mandrel-bent T304L stainless-steel tubing.
• Bolt-on installation specified without cutting or welding.
• For matching C8 original exhaust connections.
• Check GPF/OPF sensors and market specification before ordering.
• Covered by the Fabspeed Lifetime Warranty, subject to its terms and exclusions.

Use restrictions

Fabspeed specifies closed-course competition and off-road use for this product or its catalyst/intake-changing components. A sport catalyst, a STREET option label or the absence of a fault light does not establish public-road emissions approval. Confirm the requirements for the intended installation before ordering.

Installation Resources

• Manufacturer installation document (PDF)

Manufacturer Videos

Demonstration vehicles may have additional modifications. The selected configuration determines what is supplied; the video does not establish fitment or guarantee the same sound or output on another vehicle.

PMB Performance brings over 20 years of parts and fitment experience. Send your VIN and the relevant original or modified component details if you need help confirming the application before ordering.

Fitment & Compatibility