Since 1981, Active Autowerke has been known as the BMW innovators when it comes to BMW performance. All products come with a 2 Year Warranty.
The Active Autowerke 335 Signature exhaust system is the leading exhaust system for the E90, E92, & E93 335. The system is completely bolt on and constructed out of 100% 304 stainless steel. The Active Autowerke Signature Exhaust system for the 335 boasts Dual 90 MM tips and all stainless steel hardware.
This system increases exhaust airflow by over 35% and features a true X pipe design, which increases the exhaust system’s scavenging affect opposed to most manufacturers who use simple H pipe designs. This full system bolts on to your factory downpipes (system includes connecting pipes, X pipe, and dual rear mufflers), this system also features several adjustments points to allow for the addition of rear diffusers and an anti-flex design to assure proper fitment at all times (This is the only system on the market to features a bracket that connects the two mufflers together, bracket is not visible). The Active Autowerke 335 Signature exhaust system has been dyno proven to add an additional 15-22 RWHP and is a must for the true enthusiast.