Possibly. But I'm almost sure Nascar will not specify any particlar brand of muffler will have to be used, if they have to be used at all. Unless Nascar buys the mufflers like they do the tires and gas. It's a long shot at best for a racing series that hasn't even been developed yet. Was AERO even making mufflers at the end of 2006 when the Elite series was discontinued? Phil