i bought a used yoshimura RS3 full system for $100. couple hundred miles on it. first owner raced with it, second owner thought it was too loud. here's why: can is cut down quite a bit. installed it on mine (JD jet kit, 3x3 also) and yea, its VERY loud. sounds like my SV650 with no pipe at all! my roomate had a silencer plug from his leo vince slipon he was throwing away, so i took that and modified it to fit. its still VERY VERY loud. so either way, i got the headpipe for $100, which isnt bad. my question is, do i just order an RS3 slipon and will it go on? or do i need to contact yoshimura directly to get just this muffler? shame though cause it looks so good tucked behind the number plate like that... thanks!