Has anyone heard of Peak Diesel Performance? I stumbled across them the other day on the internet. Probably worth checking out. For us Canadian guys they have PAR with US $ pricing which is good. Another Canadian vendor wouldn't do that on recently purchased items. It probably cost me and a buddy $100 a piece. Piers Harry is one of the proprietors. He's got one sweet crew cab ford with a twinned '97 5. 9L in it.