And don't forget the heat generated by the baffles. In mine the pipes were always red at night and that simply can't be good for the head and exhaust valves and maybe the "ping". Removal is a nasty time consuming job, but I'd do it again no thought about it. Yes it is noisy and I'd like a little "mellower" tone, but life is just a lot of compromises? You would think there would be a way to get a mellow tone without compromising back pressure.
