I've had a gytr insert in my stock '01 wr426 muffler since I've had the bike. It fell out this weekend and I forgot what a difference it makes. I really enjoyed the extra power increase and the sound but I know it's way too loud. I don't want to be annoying with loud exhaust but I would like something that sounds a little better and has a little better performance then what I'm getting with that insert. Should I try out a PMB insert or has anyone modified their gytr one? I wonder what would happen if I cut back some length on the tubes? I would imagine I would probably be the most satisfied with a new muffler but I can't spend the cash at the moment. Thanks!