Fabspeed BMW M2/M3/M4 (G8X) Sport Cat Downpipes (2021+) Drivetrain ( Note: Rear Firewall Panel

( Note: Rear Firewall Panel and Side engine Shield in the area of the hatch support mounts will need to be trimmed slightly when fitting to a Roadster

Dyno developed incrementally to give you the MAXIMUM Horsepower and superlative GT3 Cup style sports car sound

This shortcut that the valves open up is not perforated

Making these headers ideal for track use or in areas with warmer climates

Fabspeed BMW M2/M3/M4 (G8X) Sport Cat Downpipes (2021+) Drivetrain ( Note: Rear Firewall PanelGive your G8x M3 M4 more sound and power with our high flow catted downpipe. Fabspeed Motorsport's engineering team consulted with HJS Motorsport and chose the largest HJS catalytic converter that would fit the G8x chassis. This guarantees the most exhaust flow, reliability, and sound. Our Sport Cat Downpipe will flow 93% of a 3'' straight pipe, all while providing emissions compliant performance and NO check engine light. There's no need to run cat