Active Autowerke Catted Downpipes for BMW S55

Boost the performance of your BMW S55 with the Active Autowerke Catted Downpipes. Designed for the F87 M2 Competition, F80 M3, and F82/F83 M4, these downpipes feature GESI Gen 2 400-cell high-flow catalytic converters for improved exhaust flow, quicker turbo response, increased horsepower, and reduced backpressure—all while helping prevent check engine lights on most applications.

Features

• Fits BMW F87 M2 Competition, F80 M3 & F82/F83 M4 (S55)

• GESI Gen 2 400-cell high-flow catalytic converters

• Helps prevent check engine lights (CEL)

• Faster turbo spool and improved throttle response

• TIG-welded 304 stainless steel construction

• Direct bolt-on installation

• Accepts factory O2 sensor heat shields

• EPA compliant in 49 states (Not legal in California)

• 5-Year / 50,000-Mile catalytic converter warranty

• Made in Miami, Florida