I want to buy the 5.4 stroker kit for my 03 cobra, or how do i do it? And where is a place to order some kooks or some mac long tubes? I am trying to order a whipple from lethal performance right now, and am not sure if they still have any. If they dont, where is a place to go that is a little bit cheaper then the whipple website. Should be a beast when i am done. I am also probably going to get new pistons and rings here soon because lots of my buddies have melted theirs.