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.
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.
FEATURES:
- Fits all BMW F8x M3 & M4 sedan / coupe vehicles (2015+) - Does not fit F83 convertibles
- Includes Deluxe Quad-Style Tips in a Single Wall Brushed Stainless
- Constructed in-house at Fabspeed from 16ga / .065" thick CNC mandrel-bent T304L stainless steel in 2.75" diameter for the best durability
- Integrated muffler valves include machined mounts for the factory actuators allowing retention of factory valve functionality
- Adds 19 whp and 31 ft/lbs of torque at 3300 RPM
POWER GAINS:
Peak Power
- Stock= 410 whp / 400 ft/lbs
- Exhaust = 419 whp / 414 ft/lbs
Maximum Gains - 3300 RPM = +19whp / +31ft/lbs
WEIGHT:
- Factory BMW System: 69lbs
- Fabspeed System: 62lbs
>Rear Section: 33lbs
>Mid-Pipes: 29lbs
