Features: 1.Faster recirculation of the coolant resulting in lower coolant temps. 2.Diesel also circulates engine coolant faster than the stock EGR system and the coolant temperature is lower. 3.Keep your intake manifold free of electric robbery and hot soot air, improve the reliability of the engine. 4.High quality material ensures stable performance and durability. 5.Easy to install, no complicated tools required, convenient for using. Specification: Condition: Brand New_x000D_ Item Type: EGR Delete Kit_x000D_ Material: Alloy + Rubber_x000D_ Color: As picture shown_x000D_ Fitment: _x000D_ Fit for Duramax 2011-2015 6.6L (6599cc/403cid) OHV V8 Diessl Turbo_x000D_ Note: It will NOT fit 2015.5 model years_x000D_ Fit for Silverado 2011-2015 2500/3500 HD 6.6L 6599CC 403CU. IN. V8 Diessl OHV Turbocharged - Engine Codes "LML"_x000D_ Fit for Sierra 2011-2015 2500/3500 HD 6.6L 6599CC 403CU. IN. V8 Diessl OHV Turbocharged - Engine Codes "LML"_x000D_ _x000D_ Product Description:_x000D_ The diesel EGR removal kit is for the 2011-2015 early style fit for 2500 and 3500, and replaces your stock EGR valve and cooling system. This kit provides a 6.6LLL Duramax engine with improved exhaust flow faster turbo spool and lower intake air temperature, giving you more power immediately._x000D_ Made of strong nickel-plated steel and machined aluminum billet, then full TIG welded and pressure tested. Diesel also passes through the circulating engine coolant speed faster than the stock EGR system and coolant temperature, and keep your intake manifold free of electric robbery and hot soot air to improve the reliability of the engine. PackageList: 1 Set of EGR Delete Kit