I'm shure I've said it many times to many people. But here is the power differences that Toomey FMF ProCircuit and stock pipes power have on each other. The Toomey tops them all but the thing FMF and ProCircuit have is a stinger tube/silencer USFS spark arrestor the Toomey does offer one but at a steep price of $93.99 and all it is is a stainless steel tube in an hour glass shape with a screen and fittings to fit on the end of the pipe. But I hope you find the graph enlightening your welcome.
