Pay in 4 interest-free payments of $72.50 Learn more
Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
Enhanced Power
Manufactured in the USA (with select globally sourced components)
The GDP hot side intercooler tube increases performance and flow up to 40% over stock
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" Enhanced PowerBuilt 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
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