Fabspeed BMW M3/M4 (G80/G82) Supersport X-Pipe Valvetronic Exhaust System (2021+) LT6 and throttle response to the

and throttle response to the 987

2WAY adjustable in rebound

Warranty Time: 1

This systems deletes the factory PSE valves so it always provides an aggressive snarl no matter what RPM you're at

Fabspeed BMW M3/M4 (G80/G82) Supersport X-Pipe Valvetronic Exhaust System (2021+) LT6 and throttle response to theGet that aggressive and sharp BMW sound without any check engine lights or in cabin drone. The Supersport X Pipe Valvetronic exhaust slip on system includes Fabspeed's high performance Valvetronic axle back section and the "Double X" maxflo mid pipe for the perfect combination of sound, power, and weight reduction. SOUND: This system transforms the M3 M4 into a proper sounding sports car. Youll actually hear a lot more turbo spool when letting off the