I have the 103 FLHTK w/ 100-0100 Extreme Tru Duals and SERT. Dont waste your money on the quiet baffle as they do nothing to quiet the muffs, same goes as wrapping the baffle you will get little to nothing in noise reduction. It will not hurt performance as these are straight through baffles, it they were the reverse type wrapping them with fiberglass would help.

Bottom line these are way to freaking loud, there fun around town if you want to raise some hell but if your touring there a royal PITA. Have been searching for a quieter after market baffle w/ no good results. Calls to Rinehart offer zero help as now they say they no longer even offer a quiet baffle as the one they did not quiet it.

I should of known better but the exhaust system was already on the bike when I bought it, I tought I could live with it as I had the same set up on my 03 SERK and that was also way too freaking loud.