Welcome to Copperhead Diesel Performance

Your Shopping cart is empty.

Skip to Main Content »

Looking for a detailed, up to date set of instructions pertaining to your newly purchased upgrade? We are working to offer you picture-dense tutorials, how to's, as well as DIY and technical articles to aid in the install of a wide variety of popular upgrades for your truck. As a Duramax specialty shop, we have the oppurtunity to perform many jobs on a wide variety of models.

New publications will be added periodically, so be sure to check back for more!

Table of Contents

-2001-2004 LB7 Articles

-2004.5-2005 LLY Articles

-2006-2007 LBZ Articles

-2007.5-2010 LMM Articles

-2011-2013 LML Articles
EGR Blocker Plate