The increased flow minimizes back pressure, resulting in substantial HP and torque gains. The system’s brushed stainless steel construction also makes a bold visual statement, while also increasing durability. Factory-fit specifications are followed closely, yet the AA system allows 14lbs in weight savings as opposed to the factory BMW exhaust. This exhaust features the Active Autowerke Muffler and Noise Cancellation Chamber to assist in reducing/eliminating drone. Manufactured from 100% brushed 304 stainless steel, this clamp-on system is suited for the N52 owner looking to bring their BMW's performance to new heights.

NOTE: This exhaust may not easily fit some of the XI (4WD) and Station Wagon Models - welding may be required for proper fitment of the exhaust to stock pipe.
Exhaust system requires cutting of the factory pipe for installation. Dimensions and cutting points are highlighted in the instructions.
Some models have a round tubular pipe that makes the installation seamless. Other models have an oblong shape and will require welding instead of clamping.

KEY FEATURES:

• Fits BMW 325i, 328i, 330i
• Full 304 stainless steel construction with brushed finish
• 3" Mandrel-bent piping for optimum exhaust flow
• Straight through muffler design
• NCC (Drone Reduction)
• Dual 80mm Active Autowerke Signature tips, staggered
• Weight Savings *14lbs lighter than stock BMW exhaust*
• Designed to use existing factory mounts and hardware
• Fully adjustable mounting positions
• Fully adjustable tips
• Illustrated instruction manual
• Two year warranty