X3M and X4M Valved Rear Axle-back Exhaust 535 E-mail that file to softwaresupport@activeautowerke

E-mail that file to softwaresupport@activeautowerke

not much compares to a PRIMA-supercharged E46 M3 when it comes to bang for your performance-vehicle buck

This is Replacement Belt for the Active Autowerke E9X level 1 supercharger kits

Dyno Chart

X3M and X4M Valved Rear Axle-back Exhaust 535 E-mail that file to softwaresupport@activeautowerkeBMW F97 X3M F98 X4M Rear Exhaust Due to continued requests from our customers, Active Autowerke is pleased to release the Active Autowerke Valved Rear Exhaust for the X3M and X4M. While these SUVs have received rave reviews for their performance, the sound is a muffled one leaving the driver to wonder if they are really driving a BMW M car. In order to solve this, Active Autowerke has created a full exhaust system for the X3M X4M which comprises this