Active Autowerke Midpipe w/ X-Pipe & Flat Free Flow Cats 100cpi BMW M3 | M4 2021+

Active Autowerke is able to improve on the factory mid-pipe by increasing the flow and removing the two sets of resonators. The X-Pipe design has a scavenging effect that yields modest horsepower gains. The Active Autowerke X Pipe system is constructed of 100% 304 brushed stainless steel and has a industry standard warranty against rust. This latest addition to the Signature line up is a must for the true Enthusiast looking for a better sounding car to match amazing performance.

Features:

• Durable 100% 304 Stainless Steel
• Only single cut needed with Factory Style Flanges and clamps
• Install to all systems that use factory style fitting
• One year warranty
• Replaces (not removes) secondary cats for better flow and sound

Fitment:

• BMW M3 | M4 2021+