CTS Turbo Decat Downpipe Audi S4 B9

The CTS Turbo decat downpipe is a direct replacement for the original catalytic converter on Audi S4 B9 and S5 F5 models equipped with the 3.0 TFSI engine. Its high-flow design improves exhaust flow, sound and engine performance.

Handmade from T303 stainless steel with TIG-welded construction, it features direct bolt-on installation and includes the required mounting hardware. Made in Canada.

Not EC approved.

Product code: CTS-EXH-TP-0009

Compatibility:

Audi S4 B9 (2016–2021) – 3.0 TFSI 354 hp
Audi S5 F5 (2016 onward) – 3.0 TFSI 354 hp