Give your G8X M2/M3/M4 more sound and power with these 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. Fabspeed's Sport Cat Downpipes 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 bypass pipes!
