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.
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
Features:
- Fits all BMW F8x M3 & M4 sedan / coupe vehicles (2015+) – Does not fit F83 convertibles
- Adds 19 whp and 31 ft/lbs of torque at 3300 RPM
- Includes Deluxe Quad-Style Tips in a Polished Chrome, Black Chrome, or Single Wall Brushed finish
- 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
- Integrated muffler valves include machined mounts for the factory actuators, allowing retention of factory valve functionality
- Note: Fabspeed’s product mentioned above is not C.A.R.B. certified and are for Off-Road Use ONLY in the state of California. The purchaser or end user of this product is responsible to contact their state/county jurisdiction of their country of origin to see if this product is compliant with their local road usage.
