Valvetronic Designs E9X M3 Midpipe

Valvetronic Designs


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This midpipe is quite different than most, featuring a freeflow x merge right after the transmission tunnel. This design helps allow for maximum exhaust scavenging and power gains throughout the rev range. At the rear of the midpipe there is two 12-inch resonators to smooth the exhaust sound and provide noise mitigation. Also offered is a catted version of the X-pipe for those who do not want to go fully catless. This X pipe is designed for those who want maximum sound and maximum Horsepower gains, it is not for the weak of heart. 


For those who choose the catted version you are in for a treat. Moving the cats downstream and after the x pipe keeps that familiar high pitched F1 scream but allows for less overall volume and smell reduction. This Xpipe is perfect for those who want more power and more sound but who want to keep the smell down.



Features of this Midpipe

  • Fully Mandrel Bent for Maximum flow
  • CFD and CAD-based computer-modeled
  • Lightweight Stainless T304 Material
  • Fits any aftermarket axle-back
  • 13.8 LBS lighter than stock
  • Easy Bolt-on installation


Emissions Non-Compliance. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. Its use is prohibited in any motor vehicle that is subject to emissions inspection or control. Legal in California only for racing vehicles that may never be used, or registered or licensed for use, upon a highway.