Active Autowerke X3M and X4M Valved Rear Axle - back Exhaust (11-103B) 7100 - Size # 236

- Size # 236

and aggressive but without droning

13WHP / 9WTQ Peak Gain

The muffler and all pipes of the ATLAS exhaust system are constructed from aluminized steel

Active Autowerke X3M and X4M Valved Rear Axle - back Exhaust (11-103B) 7100 - Size # 236The Active Autowerke Valved Rear Axle Back Exhaust is designed specifically for the BMW X3M and X4M (F97 F98). It addresses the stock exhaust's subdued sound by providing a deeper, more aggressive tone while retaining stock valve functionality. Made in the USA from 304 stainless steel Engineered to increase sound level and optimize exhaust flow Utilizes factory valve actuators for controlled exhaust tone Test fit on F97 F98 exhaust fixtures for