I`ve run my Epco`s without baffles since day one.I`m running the jets that came with them.I`ve got the custom ones that run even with the back fender.I love them!I think performance is just fine.I put the baffles in once(thought i`d make the wife happy)She got on the bike and first thing she said was ,"What did you do to it?I like it better the other way"God i love that women!You know what they say,Loud pipes save lives and if it`s too loud than your too old!!