Fabspeed BMW F8x M3/M4 Valvetronic Exhaust

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.

Fits all BMW F8x M3 & M4 sedan / coupe vehicles (2015+) – Does not fit F83 convertibles

World’s first and only “Double-X” midpipe design includes two “x” sections for increased exhaust scavenging, resulting in the smoothest possible exhaust note with the least amount of rasp

Constructed in-house at Fabspeed from 16ga / .065″ thick CNC mandrel-bent T304L stainless steel in 2.75″ diameter for the best durability

Adds 19 whp and 31 ft/lbs of torque at 3300 RPM

Integrated muffler valves include machined mounts for the factory actuators, allowing retention of factory valve functionality

All Fabspeed performance products are backed by the Fabspeed Lifetime Limited Warranty