Active Autowerke Signature Equal Length Mid-Pipe - F97 X3M | F98 X4M

This exhaust system upgrade was designed and engineered to work with most after-market exhaust systems/mufflers on the market today with only a single cut needed in each side of the stock mid-pipe. It is a bolt-on that can be performed by most and the stock mid-pipe can also be reinstated if needed. This system provides the maximum flow available and restores the sports car growl expected from a BMW M-Series car. Active Autowerke is able to improve on the factory mid-pipe by mixing the sounds earlier and for a longer period creating a deeper tone to the exhaust sound. The Active Autowerke single mid-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 us