I used Crites long tubes and I think because originally I wanted P/S I got them made around that. Well, as it turns out, no P/S for me and the headers seemed a little close to some stuff, manual steering box as an example. We heated that spot and rolled it, now it clears there and a few other places really nice. After that, I sent the headers to a local guy for ceramic coating, not cheap but nice. I find POR 15 nice underneath, but man is it potent, Rhino will dampen the sound alot better.