TOR is Triumph Off Road pipes.
I had Bob at Palm Beach Triumph install short TORs before I picked it up and no rejet was needed. Most think these pipes are on the quiet side (I agree)) and either go with aftermarket pipes, drill holes in the baffles, or knock baffles plates out.
Too loud is relative to what you think, period. I have Epcos and they are loud, just not obnoxiously so.
If you upgrade your pipes and rejet, you need to modify the intake also. Uni filter would probably be a good starting point
