Folks, I'm about to plunk a boat-load of cash on these headers...part of my stroker W2 build. Was originaly going to stay with 1-5/8" primary tubes but vast majority of advice I received suggested that I simply move-on to the bigger tubes...and well, given the price these things fetch I'm not looking to have to re-do this purchase ever again! lol So...I'm curious, who's tossed these (or the 1-5/8" tubes) into our rides? How was the fit? I have Hooker 1-5/8" pipes right now, no problems, they have served me well, they were thermal barrier coated inside and out before being put on the car. Oh, any chance we get some kind of club discount with TTI?