I bought the short TORs for mine but they just didn't sound right... So I opened them up... ... mean sound, awesome overrun, 6" blue flames occasionally in the dark... Tested the volume with th db meter at work (130db)... at idle they're to loud to register... Hence my need for earpugs and I have had complaints about heartstopping from behind on the motorway (freeway) at 80, (oops 70mph)...