Quick view 3" Down Pipe, Chevy/GMC 6.6L Duramax 2004.5 - 2010 SKU: GM8424 Compare $189.99 INSTALL INSTRUCTIONS MBRP GM8424 Instructions 3" Down Pipe, Chevy/GMC 6.6L Duramax 2004.5 - 2010 Replace that restrictive factory downpipe with a MBRP direct replacement downpipe for more flow, fuel economy, and better performance. While the search for... Add to Cart Add to Cart Add to Wish List Add to My Wish List Create New Wish List
