This product is for those using higher engagement springs and want their spring cap to hold up. Made from a solid billet aluminum piece with a high quality bushing for smoother shifting this is the product that you want.
There are 2 types of sheaves. One clutch which is the updated movable sheave has stainless steel sliders. The older one does not. Most if not all 120hp x3 cars come with the non stainless steel sliders. Most if not all Turbo RR models have the updated movable sheave. If you do not know which ones you can call Ibexx and we can explain how to tell the difference.