Hmm that is sweet. I never knew it. Yeah I under stand that the C6 takes more power to turn it and all but then again some people told me that a C6 will hold up better and not take as much money and work into it to hold up like a C4 would. I will definetely check that site out. Either way I will have to get this tranny built up more because I didn't build it for anything more that 350-400 HP. If I come across a good C6 for cheap through my club then I will snag it but if not then I will look into the C4. I am in no rush or need to get this done anytime real soon which is good so I will have time to look all this info up.