Intake Elbow Tube Kit Fit For 2004.5-2005 Duramax LLY 6.6L Silverado & Sierra 2500 3500 MT041015 14273624Description This Duramax LBZ 6. 6L EGR delete kit is designed for a perfect fit and can directly replace the original equipment. The EGR delete kit includes a high flow intake pipe that not only facilitates smoother coolant circulation but also achieves a temperature reduction of up to 5C compared to standard EGR delete kits, enhancing the engine's thermal efficiency. Features Material: Aluminum, Stainless Steel, Silicone Each Piece Is Leak Tested, O