For trackday cars as well as for real race cars the modification of the rear axle drive is indispensible. Accordingly we offer appropriate possibilities to optimize the Z4 M E86 differential ratio like 3,91:1, 4,10:1 und 4,44:1, differential lock 75% and our reliable differential-oil-cooler kit.

MOTORSPORT24 BMW M Tuning Race Parts Worldwide Shipping

Z4 M E86 Differential Worldwide Shipping

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Differential Cover14e860261350 €
Differential Oil Cooler Kit14e860271190 €
75% Differential Lock14e860282150 €
Differential Final Drive 4,10 | 3,8514e860301350 €