Hey Marc, while your on it, do you think there is a performance gain from straght pipe vs. a 4inch exhaust with muffler like with my banks kit? I am going in the morning to have the muffler taken out. I did the original kit myself, but did not like the quality of the design. My hangers didn't all line up, I actually had to drill a couple holes in the frame to move some of the OE mounts around. And I'm talking like 2 inches. That was not fun. But even the mounts I am using, the muffler is so heavy that the whole exhaust sways and actually part of it bumps underneath and its annoying. So the main reason is to get the heavy muffler out of the system.