I need some advice and help from anybody that has any knowledge of how i can get good sound from my yoshimura rs3 oval bolt on cans,these mufflers have only been on my bike for maybe 1000 mi,but they are simply too quiet,i want a good tuned sound but i want them at a higher decibel than the way they are.i have been thinking about drilling out the rivits and removing some of the packing to open them up a little,but i dont want to screw up the backpressure or make them sound like sh##.I did this on a muzzy megaphone on one of my other bikes and got good sound from it,but i have never messed with a dual setup,i know if i had a full system with a single can i would get better sound,but i like the looks of the dual,just want it louder,does anybody have any good answers or has anybody ever altered any yoshimuras?i appreciate any help anybody can give me before i start drilling,thx