E9x M3 Valvetronic Designs X-Pipe Midpipe Maximum Flow. Maximum Sound. Maximum Performance. Overview The E9x M3 is already a legend, but if you’re chasing the ultimate combination of sound and performance, our Valvetronic Designs X-Pipe Midpipe is your answer. This isn’t your average midpipe—engineered from the ground up, it features a free-flow X merge positioned just after the transmission tunnel and 4 resonators to optimize exhaust scavenging and unlock horsepower gains throughout the entire rev range. Design & Sound Engineering Quad Resonator Setup: Two front resonators to reduce rasp, followed by dual 12-inch rear resonators to smooth exhaust tones and refine the overall sound profile. Optional Catted Version: For those seeking a balance of flow and refinement, our 200 CELL EURO 6 certified catalytic converters provide exceptional quality and performance while keeping volume levels in check. Performance-Tuned X Merge: Improves scavenging, boosts mid-range torque, and delivers a sharper throttle response. Whether you choose the fully free-flow version for maximum aggression or the catted version for a more refined experience, this X-pipe is built for those who demand the most from their M3—both in sound and in performance. Fitment 2008–2011 BMW E90 M3 2008–2013 BMW E92 M3 2008–2013 BMW E93 M3 Features Fully mandrel-bent for maximum flow CFD & CAD-based design for optimized performance Lightweight T304 stainless steel with brushed finish Compatible with any aftermarket axle-back 13.8 lbs lighter than stock 100% bolt-on installation—no cutting, no welding FREE FLOW SYSTEMS NOW SHIP AS A QUAD RESONATED SETUP Pro Tip The free-flow version is not for the faint of heart—it’s designed for enthusiasts who want maximum sound and maximum horsepower gains. Choose your configuration based on your desired volume and performance goals.
