ok, this is the lest reply im giving you guys. first of all, all of those are necessary since those on the ls dont fit or don't work as well with the gsr head. secondly, did you notice the "etc" at the end of that list. would you like me to go into more detail? fine, vtec ecu, oil pump and water pump. i was never telling him what to do with his car, so i didn't feel it necessary to go into that much dteail. i was only saying that if you look at it, its not that expensive since you would have done all of those modifications anyway, if you want your car to move fast. but, once again, i wasn't the one arguing. all i was saying was that there is nothing wrong with the ls to the guy who asked..."why an ls" you guys are selective when it comes to reading. i'm going to get back to my ls/vtec of my own, seeing that you guys think i'm providing false information about the ls/vtec setup. i'm working on my own right now, how about you?