F8X S55 Crank Hub Upgrade

Crank Hub slippage is nothing new to us at Performance Haus. Years of experience with the N54/N55 community has shown us the need for a keyed unit. More importantly with the high capacity of the S55 platform the need for the upgrade and the chances of loosing timing are much much higher. If you are the spirited driver type, do yourself a favor and please address this issue before it becomes a problem... a very expensive problem.

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