don't they have a "Ask seller a question" just for this very thing? :dunno:
probably think I'm being a smart azz, but you ask a question without providing any information, eg item description, seller name, item number, and ask us for information? Or want us to research it for you...
Sorry, Not Logical Captain as old big ears would say:hystria:
I know the mufflers your talking about. The guy takes stock mufflers and works them. He says he has 4 different stages of muffler he can do for you. The price is good but I have no knowledge of anyone buying them and how they actually perform other than his feedback. For just a few bucks extra you can get some really nice exhaust used or wild pigs and I have heard folks like them.