AFE Power Cat-back Exhaust System (E90 M3)

This system is constructed of 2.50" diameter, mandrel bent, TIG-welded, 304 stainless steel, brushed finish tubing and uses all factory mounting locations for an approximate 1 hour install time. In recent testing, this exhaust system produced 12 horsepower and 11 lbs. x ft. of torque. This unique system utilizes 3.5" diameter 304 polished laser etched quad tips that fit perfectly in your stock bumper cutouts. 304 Stainless Steel: This unique exhaust system uses 2.5" diameter 304 Stainless Steel that is TIG-welded and has a hand brushed finish. 304 Stainless Steel Polished Quad Tips: 3.5" diameter polished tips are used for and aggressive yet sporty look. Dual Mufflers: The dual mufflers consist of a single in, dual out, free flowing design, giving an aggressive sound at high RPM's, yet maintaining a subtle tone at cruising speeds. Uses OE Mounting Locations: This system uses factory mounting locations providing stability and hassle-free installation with no modifications necessary.