I have seen and done some searching about TTI and Schumacher headers for the 440 into a Duster. My question is who has personal experience with these headers, fitment wise?, I notice it seems the Schumachers will fit better because they are a smaller tube. My motor I would estimate makes 500ish HP, so I dont want to constrict the motor if necessary but I also would like the ability to get past my steering box, starter and torsion bars without having to smash up the header, which the someone who installed this motor for my father 17 years ago already did. I do know dented headers have little impact on HP as has bee proven on a few video dyno tests, but they look like shit and everything is very close to touching. Thanks in advance for any advice and pictures.