burnout HI everyone,I have a 06 3500 black dually bighorn edtion 6 speed of course.I love this truck, I have done a few things to it ,but I'm thinking about putting STACKS on it ,I've already striaght piped. I was just wondering if someone could how loud it would be in the cab and how you guys think 6" BULL HAULLER would look?? THAX FOR LOOKING!!!