MMX Performance BILLET DIFFERENTIAL INSERTS | BMW F2x | F3x BM3 The 123 % increased core

The 123 % increased core volume is an achievement we are proud of

Go lower or stiffer than these MMX Springs and your car will bounce and crash as the dampers are mismatched to spring-rate

The F9x M5 & M8 have 2 primary and 2 secondary catalytic converters for a total of 4 catalytic converters

toe-out and zero toe

48mm thick all-aluminium core featuring a Quad-pass flow design — meaning the coolant flows through the radiator four times instead of two

MMX Performance BILLET DIFFERENTIAL INSERTS | BMW F2x | F3x BM3 The 123 % increased coreDesigned and engineered in house in the UK, the MMX differential insert kit for the BMW F2x and F3x chassis is designed to limit movement in the factory diff mounts to maintain proper suspension geometry when cornering and improve the responsiveness of the rear suspension and diff. Installation is very simple, can be performed in under an hour, and is completely reversible. By filling small voids in the four factory mounts as well as limiting vertical