Signature Rear Exhaust System

The Active Autowerke Signature Rear Exhaust is engineered to enhance the power, performance, and sound of your BMW E9X N52 325i, 328i, and 330i models. With its free-flow design and substantial 80mm dual exhaust tips, this system promotes 35% to 40% greater exhaust flow than the original equipment. This increased flow directly combats back pressure, leading to noticeable gains in horsepower and torque. Crafted from 100% brushed 304 stainless steel, the exhaust not only offers superior durability and a visually appealing brushed finish but also contributes to a sporty yet mellow exhaust note. It incorporates an Active Autowerke Muffler and a Noise Cancellation Chamber to effectively reduce or eliminate cabin drone. The system is designed as a clamp-on installation, saving approximately 14 lbs compared to the factory exhaust. Installation requires cutting of the factory pipe; specific dimensions and cutting points are detailed in the instructions. For XI (4WD) and Station Wagon models, this rear exhaust will only fit when purchased with the Active Autowerke N52 Mid Pipe, or welding may be required to connect it to the stock pipe. Some models feature a round tubular pipe for seamless installation, while others with an oblong shape will necessitate welding instead of clamping.