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.
Will a catted x-pipe and underdrive pulley require a new tune? Since we are talking about tunes, I thought I would ask. I could have sworn it won't have any effect. It doesn't hurt to be sure though!