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Our performance-boosting and emissions-compliant GT4 tuning packages at Fabspeed Motorsport provide:
We suggest pairing this product with racing software to prevent fault codes and check engine lights
This allows exhaust gases to more efficiently exit the factory mufflers - increasing velocity and smoothing out sound resulting in a solid increase in power and exhaust volume
063 Thick 6061 Aluminum
the SR Aeroshield has changed this situation
Fabspeed BMW M2/M3/M4 (G8X) Sport Cat Downpipes (2021+) SPYDER RS Over Axle Link Pipes (2022+) Our performance-boosting and emissions-compliant GT4Give 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