Audi S4 / S5 B9 3.0T Free Flow Downpipe with Heat Shield

The STRATEC free-flow performance downpipe with heat shield for the Audi S4 and S5 B9 improves exhaust flow and reduces backpressure.

Why you need it

It sharpens turbo spool and throttle response, especially at higher RPM, with a deeper, more aggressive tone. The heat shield helps manage engine bay temperatures.

Fits

• Audi S4 B9
• Audi S5 B9

Features

• Free-flow downpipe design
• Integrated heat shield
• Built for high-heat use
• Precision-engineered fitment

Good to know

Intended for off-road and competition use only. Not legal for use on public roads in many areas. ECU tuning may be required for optimal performance. Professional installation is recommended.