BMW E9X 335 BRUSHED AXLE BACK ALUM

The Valvetronic exhaust system for the BMW 335i E9X offers a compromise-free experience, allowing users to switch between a tame factory sound and a glorious straight-six sound with a closed or open exhaust valve, respectively. Constructed from T304 stainless steel with mandrel-bent tubing for maximum flow. It replaces the factory driver's side muffler and integrates a 60mm exhaust valve controlled by a key fob. The system mounts directly to factory BMW exhaust hangers and is approximately 11 pounds lighter than the stock unit. Installation is straightforward, taking roughly 1 hour, and the system is 100% reversible to stock. A small wiring harness connects to BMW's factory vacuum solenoid in the trunk for valve control. Handmade in Central Pennsylvania, it's designed to fit both E90 and E92/93 models. *Only fits with factory exhaust systems, not compatible with aftermarket systems.