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Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
it not only resists corrosion and high temperatures but also adds a clean
Adjusts shift firmness
Direct bolt-on installation for a hassle-free upgrade
This one-time service upgrades your original E66 ECM (Global B generation only) and is required for tuning using HP Tuners’ software
Note: Will only fit models equipped with center-mounted rear fuel tank
GDP Downpipe Back Exhaust - Single (2011-2015 GM 2500/3500 6.6L Duramax LML) Size:5" it not only resists corrosionBuilt 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