Active Autowerke N52 325i, 328i, 330i Signature Exhaust

Active Autowerke N52 Signature Exhaust Read reviews, and follow along with the exhaust's development in this thread:http://www.e90post.com/forums/showthread.php?t=710181 Note: system will require some modification to fit N51 equipped vehicles due to the larger diameter stock piping.
Key Features: Fits 325i,328i,330i Full 304 stainless steel construction with hi-polish finish 3" Mandrel-bent piping for optimum exhaust flow NCC (Drone Reduction) Dual 80mm Active Autowerke Signature tips, staggered Weight Savings *18lbs 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