Before you sell them try to get a replacement baffle. I went from a 2.25 down to a 1.5 (diameter of the center opening) on my Rush slip ons and them went from too loud to a little to quiet.
If python doesn't make different sized baffles I'm sure you could find somone who does that will fit.
I've already replaced them with the much quieter Screamin Eagle slip ons
Hopefully someone that wants some loud pipes will ****** these up!