the problem being that i bought the esp head kit for my mt and after running it i couldn't stand the stock motor in my dr so it was off to the L.H.S. for one for it. so i would like to thank Doug for a great product and for making my wallet thinner. now i don't lean to one side as bad on the bar stools. all kidding aside if anyone out there is thinking about getting one of these head kits and is undesided let me tell ya they are bad to the bone and well worth the bucks. my 2 cents!