Pay in 4 interest-free payments of $72.50 Learn more
Ships within 48 hours · Estimated delivery Sep 22 - Sep 27
Harnesses for specific truck models are available separately
Our kits come in a raw finish
Lower EGTs
Better Response: Increases transmission response for quicker shifts and better control
GDP Downpipe Back Exhaust - Single (2001-2007 GM 2500/3500 6.6L Duramax LB7/LLY/LBZ) Size:4" Harnesses for specific truck modelsBuilt to Last: Constructed from heavy duty T409 stainless steel for maximum durability. Mandrel bent for a perfect fit and improved airflow. Improved flanges ensure a leak free connection. Effortless Installation: Includes clamps, pre welded contour bent hangers, and strong flanges for a hassle free installation. Performance Gains: Expect increased horsepower, lower Exhaust Gas Temperatures (EGTs), and improved airflow. Unleash your truck's potential
US$ 76.49
US$ 41.00
US$ 23.20
US$ 109.00
