Audi S4 / S5 B9 3.0T Catted Stainless Downpipe

The STRATEC catted stainless exhaust downpipe for the Audi S4 and S5 B9 3.0T reduces backpressure while keeping a high-flow catalytic converter.

Why you need it

It improves exhaust flow and turbo response with a deeper, more aggressive tone than the factory unit, a balanced upgrade without excessive harshness.

Fits

• Audi S4 B9 3.0T
• Audi S5 B9 3.0T

Features

• High-flow catted downpipe
• Stainless steel construction
• Reduces backpressure
• Deeper, sportier exhaust tone

Good to know

ECU tuning may be required for optimal performance. No CARB EO number is listed for this part, so check your local emissions rules before installing. Professional installation is recommended.