Fabspeed BMW M3/M4 (G80/G82) Turbo Back Exhaust Package (21+) (FS.BMW.G8X.PKGB) 1515 Seibon's proven manufacturing methods combine

Seibon's proven manufacturing methods combine cutting-edge technology with over 15 years of expertise in carbon fiber fabrication

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The external reservoirs also house a secondary piston

(4 wheel ABS) 1993 GMC Sonoma (4 wheel ABS)

Air bags easily fit into the rear coil

Fabspeed BMW M3/M4 (G80/G82) Turbo Back Exhaust Package (21+) (FS.BMW.G8X.PKGB) 1515 Seibon's proven manufacturing methods combineLooking to get the most out of your G8x M3 M4? Fabspeed has the answer with our Turbo Back Exhaust Package. Starting with our Sport Cat Downpipes that feature high quality HJS catalytic converters. This guarantees the most exhaust flow, reliability, and sound. Then, we use our unique intermediate X Pipe that features two X Pipes for proper exhaust scavenging and sound balance. And finally our Valvetronic exhaust, which features Helical Valves from the