{"product_id":"3-performance-downpipe-exhaust-for-2015-5-2016-6-6l-lml-duramax-diesel","title":"3\" Performance Downpipe Exhaust for 2015.5-2016 6.6L LML Duramax Diesel","description":"\u003cp\u003e---tab Description---\u003c\/p\u003e\n\u003ch2\u003eCompetition Series 3\" Turbo Downpipe Upgrade | 2015.5-2016 LML Duramax\u003c\/h2\u003e\n\u003cp\u003eUpgrade your truck’s exhaust system with our premium 3\" Downpipe designed specifically for 2015.5-2016 LML 6.6L Duramax engines. Engineered for performance and durability, this downpipe is crafted from high-quality 304 stainless steel to ensure long-lasting resistance against corrosion and extreme heat. By improving exhaust flow, this upgrade helps reduce backpressure, allowing your engine to breathe more efficiently and perform at its best.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003ePrecision Engineering:\u003c\/b\u003e Custom-designed to fit 2015.5-2016 LML 6.6L Duramax diesel engines perfectly for a seamless installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003ePremium Material:\u003c\/b\u003e Constructed from heavy-duty 304 stainless steel, offering superior durability and rust resistance compared to stock components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eEnhanced Performance:\u003c\/b\u003e The 3-inch diameter design optimizes exhaust gas flow, effectively reducing backpressure for better throttle response and overall engine efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eReliable Build:\u003c\/b\u003e Engineered to withstand the rigors of high-performance diesel applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"9,4,0\" data-index-in-node=\"0\"\u003ePerfect Fit:\u003c\/b\u003e Built to OEM specifications to ensure no clearance issues during the installation process.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"11,0,0\" data-index-in-node=\"0\"\u003eMaterial:\u003c\/b\u003e 304 Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"11,1,0\" data-index-in-node=\"0\"\u003ePipe Diameter:\u003c\/b\u003e 3 Inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-path-to-node=\"11,2,0\" data-index-in-node=\"0\"\u003eCompatibility:\u003c\/b\u003e 2015.5-2016 LML 6.6L Duramax Diesel Engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eNew Version Upgrades: Superior Performance \u0026amp; Durability\u003c\/h2\u003e\n\u003cp\u003eWe have completely overhauled our design to provide maximum reliability and engine bay aesthetics. The new version features significant improvements over the old version:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial Upgrade (Full 304 Stainless Steel)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOld Version: Used 201 stainless steel pipes with standard iron flanges, susceptible to rust, thermal deformation, and exhaust leaks over time.\u003cbr\u003eNew Version: Fully upgraded to Premium 304 Stainless Steel for both the pipe and the flange. This ensures exceptional corrosion resistance, superior thermal stability, and an airtight seal even under extreme high-temperature conditions.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHeat Wrap Upgrade (High-Performance Black Fiber)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOld Version: Standard natural fiberglass wrap that is prone to fading, fraying, and dusting after heat cycles.\u003cbr\u003eNew Version: Upgraded to Professional-Grade Black Fiberglass Heat Wrap. This provides superior heat insulation to lower engine bay temperatures, resists aging, and prevents peeling, offering a cleaner, more aggressive racing-style appearance.\u003c\/p\u003e\n\u003cp\u003e---tab Fitment---\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYears:\u003c\/strong\u003e 2015.5-2016\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMake:\u003c\/strong\u003e Duramax\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModels:\u003c\/strong\u003e Silverado 2500HD \/ 3500HD, Sierra 2500HD \/ 3500HD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine:\u003c\/strong\u003e 6.6L Duramax LML\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBody:\u003c\/strong\u003e Pickup only\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SPETUNER","offers":[{"title":"Black","offer_id":47370597171337,"sku":"#12114","price":239.99,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":47370597204105,"sku":"#12115","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/3342\/6313\/files\/01_9483ba3e-c72e-4f79-b73f-bd62c6ab6b8d.webp?v=1784000751","url":"https:\/\/spetuner.com\/products\/3-performance-downpipe-exhaust-for-2015-5-2016-6-6l-lml-duramax-diesel","provider":"SPEtuner","version":"1.0","type":"link"}