Need to alter the final drive gearing on your rear axle to suit new tuning modifications ? This is easiest achieved by swapping the internal gears within the rear differential housing to give either a higher or lower than factory final drive ratio .

A numerically higher ratio will give lower gearing , equating to increased acceleration but decreased potential top speed ....and vice versa .

Made from hardened steel surpassing OEM specification.

Differential internals with different ratios are available, please enquire.

The set priced for here is for E46 M3 and CSL, please call or e mail us for other applications .

Fits: E36 & E46 M3 and CSL. (Please enquire for other models)

PLEASE SPECIFY YOUR EXACT VEHICLE MODEL WHEN ORDERING.

Estimated Product Shipping Weight inc Packaging: 17.00 Kg