APR's RSCﾙ Catback Exhaust begins as a 3" design and splits to a dual 2.5" design for each exhaust outlet. Smooth and unrestricted transitions at the splitter ensure exhaust velocity is not hindered. The mandrel-bent stainless-steel design is free of restrictions thanks to APR's RSCﾙ Technology found in each chamber. Three straight-through RSCﾙ chambers are specifically tuned to remove undesirable sound frequencies, "drone", from the cabin resulting in only the engine's true and desirable exhaust note. Expect quiet operation at low speeds and idle with nearly no in-cabin noise and experience the classic Audi 5-cylinder turbocharged exhaust note the second you mash the accelerator. The exhaust note is controlled by your right foot and does not require valving to restrict exhaust flow in an effort to reduce noise. The Catback Exhaust System does not alter any factory emissions components so it's emissions-testing friendly.

Each configuration is constructed from low-carbon stainless-steel with high-precision jewelry-grade TIG welding and high-precision CNC MIG-welded components. High-Strength Torca exhaust clamps ensure leak-proof operation through the unrestricted design and a lifetime warranty ensures years of worry-free operation. To better understand the components included with each system, please click the Exhaust Overview buttons below.