Does anyone know if there are any aftermarket transmissions for the R56 manual? How much power can the standard Getrag transmission handle comfortably?

 

Other than JCW Challange Cup car transmission (P/N #23007585701), a quick search will show you that there's not much available.

After may have tuned their R56 platform to reach near 280+hp, I haven't seen / heard of a transmission failure yet.

- Erik