but it’s a considerable restriction with 200 extra ponies in the mix. Upgrading to a 3-inch diameter downpipe, along with a 4 or 5-inch downpipe-back exhaust system, opens up exhaust flow significantly. Less restriction on the exhaust...
iFJF 134001 Fuel Filter Housing Cap for 2017-2020 GM Duramax 6.6L L5P Chevy Silverado/GMC Sierra 2500HD 3500HD Billet Aluminum with Drain Plug(Black) Shipping, arrivesin 2 days About this item Product details This item is ...