Blog / s55

Spun Crank Hubs (SCH) are becoming an issue on S55s, failures have been reported on both modified and stock platforms. If you are modding, seeing regular track use or planning to keep your M2C/M3/M4 after your warranty expires, this solution (or any other that bonds the hub to the crank) is highly recommended. The VTT Spline Lock kit is a great way to affix the hub to the crank, rather than depending solely on the tension from the hub bolt to hold the hub/gears securely, which has proven to be unreliable in some cases.

The BMW S55 is already very potent engine straight out of the factory. Here are a couple of mods from Carbahn that further improve its performance and durability. 

CarBahn's high flow replacement air filters are engineered to optimize airflow to your engine, allowing for better combustion and improved performance. With less restriction compared to stock filters, these filters ensure that your engine can breathe easier, resulting in enhanced power output.

We are happy to offer the only complete S55 crank hub solution that does NOT require the crank to be drilled for pins. VTT uses their proprietary "SplineLock" technology on their SplineLock Crank Hub Solutions...