{"product_id":"lly-egr-delete-kit-high-flow-intake-2004-5-2005","title":"2004.5-2005 6.6L GM Duramax LLY EGR Delete Kit with Intake Elbow","description":"\u003ch2 data-path-to-node=\"3\"\u003e2004.5-2005 6.6L GM Duramax LLY EGR Delete Kit with Intake Elbow\u003c\/h2\u003e\n\u003cp data-path-to-node=\"4\"\u003eUnlock the full performance potential of your \u003cstrong data-path-to-node=\"4\" data-index-in-node=\"46\"\u003e6.6L Duramax LLY\u003c\/strong\u003e with our premium \u003cstrong data-path-to-node=\"4\" data-index-in-node=\"80\"\u003eEGR Delete Kit\u003c\/strong\u003e. Specifically engineered for 2004.5–2005 Silverado and Sierra 2500HD\/3500HD trucks, this kit is the ultimate solution for permanently removing the restrictive factory EGR valve and cooler.\u003c\/p\u003e\n\u003cp data-path-to-node=\"5\"\u003eBy replacing the factory bottleneck with our \u003cstrong data-path-to-node=\"5\" data-index-in-node=\"45\"\u003eHigh-Flow Intake upgrade\u003c\/strong\u003e, you ensure your engine receives a constant supply of clean, oxygen-rich air. This results in faster turbo spooling, sharper throttle response, and a significant reduction in soot-related engine wear.\u003c\/p\u003e\n\u003chr data-path-to-node=\"6\"\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eKey Features \u0026amp; Performance Benefits\u003c\/h3\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cstrong data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eHigh-Flow Intake Design:\u003c\/strong\u003e Replaces the restrictive factory intake bridge, maximizing airflow efficiency and improving mid-range torque.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cstrong data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eStop Carbon Buildup:\u003c\/strong\u003e Prevents abrasive exhaust soot from recirculating into your intake manifold, keeping your engine oil cleaner and protecting vital internal components.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cstrong data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eOptimized Cooling Performance:\u003c\/strong\u003e Eliminates the EGR cooler to prevent hot exhaust gases from heating your engine coolant, leading to lower overall operating temperatures.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cstrong data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eIncreased Fuel Efficiency:\u003c\/strong\u003e By allowing the engine to run cleaner and more efficiently, many LLY owners experience up to \u003cstrong data-path-to-node=\"8,3,0\" data-index-in-node=\"120\"\u003e20% better fuel economy\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cstrong data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003eHeavy-Duty Construction:\u003c\/strong\u003e Formulated for high-temperature applications and extreme towing, with components designed to withstand thermal cycling without cracking or leaking.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"9\"\u003e\n\u003ch3 data-path-to-node=\"10\"\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"11\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetail\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,1,0,0\"\u003e\u003cstrong data-path-to-node=\"11,1,0,0\" data-index-in-node=\"0\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,1,1,0\"\u003e6.6L V8 Duramax (LLY Code)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,2,0,0\"\u003e\u003cstrong data-path-to-node=\"11,2,0,0\" data-index-in-node=\"0\"\u003eModel Years\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,2,1,0\"\u003e2004.5, 2005\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,3,0,0\"\u003e\u003cstrong data-path-to-node=\"11,3,0,0\" data-index-in-node=\"0\"\u003eComponents\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,3,1,0\"\u003eEGR Valve\/Cooler Delete + High-Flow Intake Bridge\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,4,0,0\"\u003e\u003cstrong data-path-to-node=\"11,4,0,0\" data-index-in-node=\"0\"\u003eMaterial\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,4,1,0\"\u003eHigh-Grade Billet Aluminum \u0026amp; Stainless Steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,5,0,0\"\u003e\u003cstrong data-path-to-node=\"11,5,0,0\" data-index-in-node=\"0\"\u003eHardware\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,5,1,0\"\u003eHigh-Temp Seals and Precision Block-Off Plates Included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,6,0,0\"\u003e\u003cstrong data-path-to-node=\"11,6,0,0\" data-index-in-node=\"0\"\u003eUsage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"11,6,1,0\"\u003eOff-Road \u0026amp; Competition Use Only\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003chr data-path-to-node=\"12\"\u003e\n\u003ch3 data-path-to-node=\"13\"\u003eDetailed Vehicle Fitment Guide\u003c\/h3\u003e\n\u003cp data-path-to-node=\"14\"\u003eThis kit is a precision-fit replacement for the following \u003cstrong data-path-to-node=\"14\" data-index-in-node=\"58\"\u003e6.6L LLY Duramax\u003c\/strong\u003e pickup trucks:\u003c\/p\u003e\n\u003cul data-path-to-node=\"15\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,0,0\"\u003e\u003cstrong data-path-to-node=\"15,0,0\" data-index-in-node=\"0\"\u003e2004.5-2005 Chevrolet Silverado 2500HD \/ 3500HD\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,1,0\"\u003e\u003cstrong data-path-to-node=\"15,1,0\" data-index-in-node=\"0\"\u003e2004.5-2005 GMC Sierra 2500HD \/ 3500HD\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,2,0\"\u003e\u003cem data-path-to-node=\"15,2,0\" data-index-in-node=\"0\"\u003eNote: Specifically for the LLY engine code (8th digit of VIN is \"2\"). Please ensure your vehicle matches this engine configuration before purchase.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-path-to-node=\"16\"\u003e\n\u003ch3 data-path-to-node=\"17\"\u003eWhy Upgrade Your LLY Duramax?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"18\"\u003eThe \u003cstrong data-path-to-node=\"18\" data-index-in-node=\"4\"\u003eLLY Duramax\u003c\/strong\u003e is famous for its power but is notorious for overheating issues related to the factory EGR system and restrictive air intake. Installing this \u003cstrong data-path-to-node=\"18\" data-index-in-node=\"158\"\u003eLLY EGR Delete\u003c\/strong\u003e is a proactive step toward extreme reliability. By eliminating the source of hot exhaust recirculation and soot clogs, you reduce the risk of head gasket failure and avoid the high costs of repairing aging factory components.\u003c\/p\u003e\n\u003chr data-path-to-node=\"19\"\u003e\n\u003ch3 data-path-to-node=\"20\"\u003eFrequently Asked Questions (FAQ)\u003c\/h3\u003e\n\u003cp data-path-to-node=\"21\"\u003e\u003cstrong data-path-to-node=\"21\" data-index-in-node=\"0\"\u003eQ: Will this kit require a tuner?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"21\"\u003e\u003cstrong data-path-to-node=\"21\" data-index-in-node=\"34\"\u003eA:\u003c\/strong\u003e Yes. Removing the EGR system on an LLY engine will typically trigger a Check Engine Light (CEL). A performance tuner is required to disable the EGR codes and optimize engine calibration.\u003c\/p\u003e\n\u003cp data-path-to-node=\"22\"\u003e\u003cstrong data-path-to-node=\"22\" data-index-in-node=\"0\"\u003eQ: Is the high-flow intake bridge included?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"22\"\u003e\u003cstrong data-path-to-node=\"22\" data-index-in-node=\"44\"\u003eA:\u003c\/strong\u003e Yes. This kit is the \"High Flow\" version which includes the intake bridge to provide a smoother air path compared to basic block-off plates.\u003c\/p\u003e\n\u003cp data-path-to-node=\"23\"\u003e\u003cstrong data-path-to-node=\"23\" data-index-in-node=\"0\"\u003eQ: Is this kit suitable for heavy towing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-path-to-node=\"23\"\u003e\u003cstrong data-path-to-node=\"23\" data-index-in-node=\"42\"\u003eA:\u003c\/strong\u003e Absolutely. It is specifically designed for heavy-duty use. By lowering EGTs (Exhaust Gas Temperatures), your truck will remain more stable and reliable under heavy loads.\u003c\/p\u003e","brand":"DieselPerf","offers":[{"title":"Default Title","offer_id":47257289687293,"sku":"DIPEGR-1037","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/6526\/2077\/files\/ChatGPT_Image_May_13_2026_09_56_26_PM_4.png?v=1778856136","url":"https:\/\/dieselperf.com\/products\/lly-egr-delete-kit-high-flow-intake-2004-5-2005","provider":"DieselPerf","version":"1.0","type":"link"}