{"product_id":"egr-valve-cooler-delete-with-3-5-downpipe-exhaust-for-2017-2023-l5p-6-6l-duramax","title":"EGR Valve Cooler Delete with 3.5\" Downpipe Exhaust for 2017-2023 L5P 6.6L Duramax","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003ch2\u003eUltimate 2017-2023 L5P 6.6L Duramax EGR Delete with 3.5\" Downpipe Exhaust  | Restore Power \u0026amp; Max MPG\u003c\/h2\u003e\n\u003cp\u003eUpgrade to a solid carbon steel EGR delete kit, resisting up to 2,732°F to block soot and boost airflow. Paired with a high-flow downpipe, it reduces turbine backpressure, unlocks power, and allows higher boost—eliminating factory performance restrictions.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized Exhaust Flow: \u003c\/strong\u003e\u003cspan\u003eLarge 3.5-inch bore outperforms stock piping, slashing turbo lag and sharpening throttle response for instant power delivery.\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eTurbo Spool Enhancement:\u003c\/strong\u003e Accelerates exhaust gas exit, cuts backpressure, and lets the turbine spin faster—boosting boost output and overall engine performance.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eRemoves OEM Bottlenecks:\u003c\/strong\u003e Replaces the restrictive factory downpipe, eliminating the exhaust choke point and laying a solid base for tuning and higher boost.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eDurable High-Temp Build:\u003c\/strong\u003e Crafted from premium stainless steel with corrosion resistance, ensuring lasting reliability under extreme exhaust heat conditions.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003cstrong\u003eAdvanced EGR Cooling Design:\u003c\/strong\u003e Engineered for faster, more efficient coolant recirculation. Features billet aluminum, nickel-plated steel, silicone hoses, zinc hardware, and precision O-rings.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eEGR Delete Kit Specification\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/l5p_egr1.webp?v=1763608473\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/l5p_egr_2.webp?v=1763608474\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/l5p_egr_3.webp?v=1763608526\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/l5p_egr_4.webp?v=1763608555\"\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003eDownpipe Exhaust Specification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eSurface: Mirror Polish\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/l5p_downpipe.webp?v=1763610253\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/l5p_dp2.webp?v=1763610267\"\u003e\u003c\/p\u003e\n\u003ch6\u003eOE vs. DPFexhaust Downpipe\u003c\/h6\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003eStock Downpipe\u003c\/th\u003e\n\u003cth\u003eDPFexhaust 3.5\" Downpipe\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePipe Diameter\u003c\/td\u003e\n\u003ctd\u003eNarrow, restrictive\u003c\/td\u003e\n\u003ctd\u003eLarge 3.5-inch high-flow mandrel bent\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Protection\u003c\/td\u003e\n\u003ctd\u003eBare metal, prone to rust\u003c\/td\u003e\n\u003ctd\u003eBlack ceramic coating, high-temp and anti-corrosive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeld Quality\u003c\/td\u003e\n\u003ctd\u003eSpot-welded, uneven\u003c\/td\u003e\n\u003ctd\u003ePrecision full TIG-welded flanges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeat Management\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003eIncludes thermal wrap + stainless clamps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlow Efficiency\u003c\/td\u003e\n\u003ctd\u003eHigh backpressure, turbo lag\u003c\/td\u003e\n\u003ctd\u003eSmooth, unrestricted flow—ideal for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eL5P downpipe delete\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ebuilds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch6\u003eWhat's the Difference Between a Downpipe and an Exhaust?\u003c\/h6\u003e\n\u003cdiv class=\"table-wrapper\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eFunction Description\u003c\/th\u003e\n\u003cth\u003eLocation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDownpipe\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConnects turbo outlet to mid-pipe; manages hot gas flow\u003c\/td\u003e\n\u003ctd\u003eImmediately after the turbocharger\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExhaust System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMid-section to tailpipe; reduces noise and handles emissions\u003c\/td\u003e\n\u003ctd\u003eFrom downpipe to tailpipe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eUpgrading the downpipe = performance and throttle response\u003cbr\u003eUpgrading the exhaust = tone, flow, and backpressure control\u003c\/p\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003e\u003cimg loading=\"lazy\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0661\/3342\/6313\/files\/file-line-icon_1.svg?v=1745396708\" width=\"24\" height=\"24\"\u003e\u003ca title=\"2017-2023 L5P 6.6L Duramax EGR Delete Kit Instruction\" href=\"https:\/\/dpfexhaust.com\/blogs\/instruction\/detailed-egr-delete-installation-for-duramax-l5p-owners\"\u003e2017-2023 L5P 6.6L Duramax EGR Delete Kit Instruction\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eGMC Sierra\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e2017 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2018 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2019 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2020 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2021 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2022 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2023 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2024 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2025 L5P 6.6L Duramax Diesel GMC Sierra 2500 3500 HD\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eChevrolet Silverado\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e2017 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 H\u003c\/li\u003e\n\u003cli\u003e2018 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2019 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2020 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2021 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2022 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2023 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2024 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003cli\u003e2025 L5P 6.6L Duramax Diesel Chevrolet Silverado 2500 3500 HD\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e---tab FAQ---\u003c\/p\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is a 2020 L5p Duramax EGR delete kit?\u003c\/strong\u003e\u003cbr\u003eA: A 2020 Duramax EGR delete kit removes the EGR valve and cooler from your 6.6L L5P Duramax engine. Removing the EGR system improves fuel efficiency and engine long-term reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this EGR delete kit fit my 2018 Chevrolet Silverado 2500 HD?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, the kit fits\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2017–2023 Chevrolet Silverado and GMC Sierra 2500\/3500 HD\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003emodels equipped with the\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e6.6L L5P Duramax diesel engine\u003c\/strong\u003e, including your 2018 Silverado.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the installation process complicated?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e No. \u003ca href=\"https:\/\/dpfexhaust.com\/blogs\/instruction\/detailed-egr-delete-installation-for-duramax-l5p-owners\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eCheck here for the step-by-step installation guide\u003c\/strong\u003e.\u003c\/a\u003e \u003c\/span\u003eMost DIY enthusiasts with basic tools can complete the job in a few hours.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What are the benefits of installing an EGR delete kit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eKey benefits include improved throttle response, reduced soot accumulation, lower exhaust temps, and better fuel economy. It also helps\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003emaximize the efficiency of 2017–2023 L5P engines\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will this delete kit void my vehicle's warranty?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, deleting emissions components -- such as EGR -- might void your factory warranty. It's important to review your warranty terms or consult a professional mechanic before installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is the L5P Delete Kit legal to use?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e This EGR \u003c\/span\u003e\u003cstrong\u003eDelete Kit\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis intended for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eoff-road and competition use only\u003c\/strong\u003e. Check local emissions laws before installing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Will my 2021 GMC Sierra pass emissions with this kit installed?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eNo. Removing emissions equipment like EGR typically causes the vehicle to\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003efail emissions testing\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What tools are needed to install the EGR Delete Kit?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eBasic tools like wrenches, sockets, and screwdrivers are sufficient. The kit includes all necessary hardwares tailored for\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e2017–2023 L5P Duramax trucks\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What should I do if I encounter issues during installation?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eA:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eCheck the\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/dpfexhaust.com\/blogs\/instruction\/detailed-egr-delete-installation-for-duramax-l5p-owners\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003einstallation instruction\u003c\/strong\u003e\u003c\/a\u003e. For further support, contact our customer service for help:\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003ca href=\"mailto:service@dpfexhaust.com\" rel=\"noopener\" target=\"_blank\"\u003eservice@dpfexhaust.com\u003c\/a\u003e\u003c\/strong\u003e.\u003c\/p\u003e","brand":"DPFexhaust","offers":[{"title":"2017-2023","offer_id":50160819372255,"sku":"#12035","price":369.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0752\/1789\/5647\/files\/lQLPKeWkgVx0SpPNA-jNA-iw_pxo9wFuW74KB7P6_WMlAA_1000_1000.png?v=1781754490","url":"https:\/\/dpfexhaust.com\/products\/egr-valve-cooler-delete-with-3-5-downpipe-exhaust-for-2017-2023-l5p-6-6l-duramax","provider":"DPFexhaust","version":"1.0","type":"link"}