Active Autowerke X-pipe High Flow Catted BMW M3 E90 E92 E93 S65
BMW Signature X Pipe with High Flow Cats - Active Autowerke 11-017C BMW Signature X Pipe with High Flow Cats - Active Autowerke 11-017C Active Autowerke is proud to release the highly anticipated Signature Track Pipe with X-Pipe and Connecting Pipes with GESI G-Sport cats for the BMW E9X M3. This exhaust system was designed and engineered to work with most after-market exhaust systems/mufflers on the market today without the need to cut, weld or modify anything. It is a true bolt-on that can be performed by most. Active Autowerke is able to improve on the factory X Pipe design by a scavenging effect that yields high horsepower gains. Dramatic weight savings are also gained when one compares the factory system at 40 lbs and the Active Autowerke Signature X Pipe weighting at a mere 25 lbs. Noticeable gains have been measured on the Active Autowerke Mustang Chassis dyno with a 12+ RWHP when adding this X Pipe to our Signature exhaust system and as much as 10+ RWHP when used to the BMW st