MMX Underbody Chassis Brace For G8X BMW M3/M4

The MMX Underbody Chassis Brace is a direct replacement for the factory brace on the BMW G8x M3 and M4, engineered to provide an additional 15mm of exhaust clearance whilst maintaining original ground clearance. Precision machined from billet 6061-T6 aluminium, it also adds chassis stiffness for improved dynamic performance, with no modifications required for installation.

Beyond providing additional clearance, the MMX Underbody Chassis Brace also contributes to increased chassis rigidity, helping to improve overall dynamic performance. By reinforcing a key structural area beneath the vehicle, the brace aids stability and responsiveness, making it a worthwhile upgrade whether on the road or track.

Precision CNC machined from billet 6061-T6 aluminium, the brace combines exceptional strength with low weight. Its carefully optimised profile removes a considerable amount of unnecessary material whilst retaining the rigidity required for demanding use, delivering the premium finish and engineering expected from every MMX product.