Looking for a bolt-on muffler or a shorty for my '03 GSXR 600, so probably any of the '01-05 600/750 or earlier 1000's should bolt-on. It's going to be a shorty stunt muffler, so dented is probably preferred.
No OEM's, too big and heavy.

Ideally something like a TRS or RS3 or similar with riveted endplates so I can make a shorty and rivet/screw back together easily after I shorten. Polished is a plus.