These high-performance camshafts deliver superior results for most motorsport applications. Designed to fit turbos ranging from 58mm to 66mm, they can deliver an impressive 350-550hp. However, a valve spring upgrade is necessary.

As recommended by Kelford Cams, the KVS11 is the best valve spring upgrade for up to 32psi boost and 9000rpm.

https://www.youtube.com/watch?v=XH0v00ogUO4