{"product_id":"gm-duramax-l5p-down-pipe-back-race-exhaust-system-2017-2026","title":"6.6L Duramax L5P 5 Inch Downpipe-Back Exhaust System | 2017–2026","description":"\u003ch2\u003eIntroduction\u003c\/h2\u003e\n\u003cp\u003eUnlock the full potential of your Chevrolet Silverado or GMC Sierra 2500\/3500HD 6.6L Duramax L5P with the Downpipe-Back Race Exhaust System, available for 2017–2019 and 2020–2026 models. Built from 16-gauge stainless steel and offered in 4-inch or 5-inch variants. This L5P downpipe back exhaust delivers unrestricted flow, improved throttle response and a deep aggressive tone purpose built for serious off-road and competition use.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eAvailable Variants\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2017–2019 GM 2500\/3500HD Duramax L5P\u003c\/li\u003e\n\u003cli\u003e2020–2026 GM 2500\/3500HD Duramax L5P\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBoth versions feature a 4” or 5” stainless steel configuration designed to fit each model generation precisely.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e16-gauge stainless steel construction for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003e4” and 5” diameter options to tailor flow, tone and application\u003c\/li\u003e\n\u003cli\u003eDownpipe-back race exhaust design for maximum airflow and power\u003c\/li\u003e\n\u003cli\u003eOEM-style hangers and prewelded contour bends for accurate fitment\u003c\/li\u003e\n\u003cli\u003eImproved flanges and stainless clamps for secure, leak-free connections\u003c\/li\u003e\n\u003cli\u003eOEM-style 4-bolt turbo flange (2020–2026 variant only)\u003c\/li\u003e\n\u003cli\u003eNo bungs for a clean, unrestricted exhaust path\u003c\/li\u003e\n\u003cli\u003eFits EC-CC\/SB-LB-Dually configurations (not for Cab \u0026amp; Chassis trucks)\u003c\/li\u003e\n\u003cli\u003eEase of installation with all necessary hardware included\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eBenefits\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eBoosts horsepower and torque by reducing exhaust restriction\u003c\/li\u003e\n\u003cli\u003eLowers EGTs during towing and heavy load operation\u003c\/li\u003e\n\u003cli\u003eImproves turbo spool and throttle response\u003c\/li\u003e\n\u003cli\u003eEnhances airflow for better engine breathing and efficiency\u003c\/li\u003e\n\u003cli\u003eProduces a deep, performance-driven exhaust tone\u003c\/li\u003e\n\u003cli\u003eBuilt from premium stainless steel for long-term durability in harsh conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e2017–2019 Chevrolet Silverado \/ GMC Sierra 2500HD–3500HD 6.6L Duramax L5P\u003c\/li\u003e\n\u003cli\u003e2020–2026 Chevrolet Silverado \/ GMC Sierra 2500HD–3500HD 6.6L Duramax L5P\u003c\/li\u003e\n\u003cli\u003eFits EC-CC\/SB-LB-Dually trucks\u003c\/li\u003e\n\u003cli\u003eNot compatible with Cab \u0026amp; Chassis models\u003c\/li\u003e\n\u003cli\u003e2020–2026 models must have OEM-style 4-bolt turbo flange\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e 16-gauge stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 4” or 5” mandrel-bent tubing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Downpipe-back, single side exit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Natural brushed stainless\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardware:\u003c\/strong\u003e Stainless clamps, contour-bent hangers, prewelded flanges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDesign:\u003c\/strong\u003e Bung-free, high-flow race system\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eInstallation \u0026amp; Notes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDirect bolt-on installation using factory hanger points\u003c\/li\u003e\n\u003cli\u003eNo cutting or welding required\u003c\/li\u003e\n\u003cli\u003eMust be paired with off-road race tuning for proper performance\u003c\/li\u003e\n\u003cli\u003eProfessional installation recommended for best results\u003c\/li\u003e\n\u003cli\u003eFor off-road and race applications only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003cdiv class=\"faq-container\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eWhat sizes are available?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eChoose between 4-inch or 5-inch stainless steel versions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eDoes it require tuning?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. Race tuning is required for correct performance and to prevent error codes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eAre all components included?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eYes. Each kit includes clamps, contour-bent hangers and improved flanges.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"faq-qa-wrapper\"\u003e\n\u003csummary class=\"faq-question\"\u003eHow does it change sound and performance?\u003c\/summary\u003e\n\u003cdiv class=\"faq-answer\"\u003e\n\u003cp\u003eExpect a deeper exhaust tone, faster turbo spool, lower EGTs and improved throttle response.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Black Bandit","offers":[{"title":"2017 - 2019 \/ 4-inch Downpipe-Back \/ No Muffler","offer_id":44328432271453,"sku":"ESSS-GM-17-4","price":515.0,"currency_code":"USD","in_stock":true},{"title":"2017 - 2019 \/ 4-inch Downpipe-Back \/ With Muffler","offer_id":44328432304221,"sku":"ESSS-GM-17-4M","price":610.52,"currency_code":"USD","in_stock":true},{"title":"2017 - 2019 \/ 5-inch Downpipe-Back \/ No Muffler","offer_id":44328432336989,"sku":"ESSS-GM-17-5","price":685.0,"currency_code":"USD","in_stock":true},{"title":"2017 - 2019 \/ 5-inch Downpipe-Back \/ With Muffler","offer_id":44328432369757,"sku":"ESSS-GM-17-5M","price":795.76,"currency_code":"USD","in_stock":true},{"title":"2020 - 2026 \/ 4-inch Downpipe-Back \/ No Muffler","offer_id":44328432402525,"sku":"ESSS-GM-L5P-20-4","price":529.0,"currency_code":"USD","in_stock":true},{"title":"2020 - 2026 \/ 5-inch Downpipe-Back \/ No Muffler","offer_id":44328432435293,"sku":"ESSS-GM-L5P-20-5","price":685.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/1131\/9389\/files\/black-bandit-race-exhaust-gm-duramax-l5p-down-pipe-back-race-exhaust-system-2017-2023-gm-duramax-l5p-downpipe-back-race-exhaust-2017-2023-4-stainless-44135061029115_ea94b13d-94e2-4b12-8f45-55234cedca02.webp?v=1775076720","url":"https:\/\/tunerdepot.com\/products\/gm-duramax-l5p-down-pipe-back-race-exhaust-system-2017-2026","provider":"Tuner Depot","version":"1.0","type":"link"}