Developed using state-of-the-art CAD and FEM technology, this stainless steel exhaust system unleashes the true sound and character of the TwinPower Turbo 3.0 liter straight six cylinder engine in the xDrive 35i. BMW has carefully engineered this system to enhance exhaust sound while also increasing volume and reducing backpressure. The M Performance Exhaust combines premium sound and style for an exhilarating driving experience every time you get in the driversGÇÖ seat. Please note, the exhaust finisher kit must be purchased when buying the exhaust. Contact your local BMW Center for more details. Order 1 finisher per exhaust. M Sport only.