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.
The one most everyone runs uses a Napa 6637 filter or similar. Doesn't have to be chrome any 4" 45° exhaust will work. Some people switch out the paper filter for the AFE big boost filter