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.
I fail to understand what decible level has to do with the choice of exhaust. If you're wanting to upgrade the stock exhaust, it should be done for performance reasons, correct? So why don't you purchase an exhaust that has proven more gains rather than look for just the loudest?