Adapted final transmission for the BMW 230K (225M) differential. Fits all F06, F10-F13 M5, M6 and F80-F87 M2, M3 and M4 (Including GTS, CS, Competition, GT4 and CS Racing), G14-G16 8 Series and F91-F93 M8
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Standard M5, M6 and M8 ratio = 3.15
Standard M2, M3 and M4 ratio = 3.46
3.15 and and 3.46 are machined used gears for use with a mechanical lock.
4.10 are aftermarket reinforced new gears.
Please contact us for delivery time, installation options and whether it fits your car.