Have a whipple 2.3 build i am in the middle of, but wont be going crazy with it. Will be more than likely never above 800hp to the wheels. Looking at the RXT twin disc and the spec 3 with a 26 spline also being put in same time. Really wanting something not too much of a leg work out. Was considering the RST but saw a lot of threads saying to just skip to the RXT