Free Flow Stainless Exhaust Downpipe for Audi S4 S5 B9 3.0T ECU Tuning Using advanced 3D scanning and

Using advanced 3D scanning and CAD design

Increased volumetric efficiency vs OEM intake

Ensures unrestricted exhaust flow from inlet to tip

and true motorsport performance

Free Flow Stainless Exhaust Downpipe for Audi S4 S5 B9 3.0T ECU Tuning Using advanced 3D scanning andUnlock improved performance and responsiveness from your Audi S4 or S5 B9 with the STRATEC Performance Exhaust Downpipe with Heat Shield. Designed to improve exhaust flow and reduce backpressure, this upgrade enhances turbo response, power delivery, and overall driving feel. Constructed from high quality materials and featuring an integrated heat shield, this downpipe helps manage engine bay temperatures while protecting surrounding components from