When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
There are quite but louder than stock mufflers. I don't think they good or anything like that. The thrush muffler are supposed to be more free flowing then stock and add hp, but don't count on any extra power.