The ultimate catback exhaust system for the Ultimate Driving Machine includes Fabspeed's high performance Valvetronic rear muffler and exclusive "Double-X" midpipe for the perfect combination of sound and power.
Pure and simple, you're looking at the best-sounding M2 Competition exhaust system on the market. Don't just take our word for it, though...
"Fabspeed manages to make the BMW exhaust note not suck while gaining 20+ horses with their Valvetronic system" - BoostAddict
"Fabspeed's Valvetronic Exhaust improves the quality of the exhaust sound dramatically" - BoostAddict
NOTE: Must extend wire harness for the valves by 3" for fitment to valve controller.
This product removes the OEM catalytic converters from the vehicle, and as such, is strictly intended for closed track events and off-road use only. Racing Cat Bypass Pipes are solely intended for track and race cars as they are NOT California Air Resources Board Certified and not EPA certified. You are hereby informed and warned to check your local, state, and federals laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts.