# Snow Performance Chevy/GMC Stg 3 Boost Cooler Water Injection Kit (SS Braided Line 4AN Fittings) Snow Performance has combined performance, quality, and ease of installation in this new water-methanol injection kit designed for all Chevy / GMC LBZ / LLY/ LMM/ LML / L5P Duramax Ford owners who demand colder EGTs while towing heavy loads. The Diesel Stage 3 Boost Cooler utilizes a 2D mapped controller that commands injection based on boost pressure and EGTs (exhaust gas temperatures) to maintain extremely cold air inlet temperatures, 100-300 EGT decreases, decreased emissions, cleaner engine components, and increased fuel economy all while giving 65+ HP to help pull large hills with easy effort while towing. A must have for the diesel enthusiast that is concerned about the longevity of his truck that sees heavy towing. None invasive, the Diesel Stage 3 Boost Cooler® controller is designed to mount on the steering column or the dash so no drilling/marring of the interior needs to take place or additional gauge pods need to be purchased. Functions as a boost gauge, water-meth controller and EGT monitor all in one! Concerned about warranty? The Snow Performance Stage 3 does not leave a signature on the vehicle leaving your diesel truck with its warranty intact. 7 Gal Tank included for trip ready installation. Recommended for all daily driven Chevy /GMC LBZ / LLY / LMM / LML / L5P Duramax owners that see heavy towing where EGTs become dangerously high. Need a CARB E.O.# for your state? No problem! See part# SNO-50100 for 50-State legal system (C.A.R.B E.0.# D-723) - New Prime Feature Ensures Water-Methanol In Lines With the Push of A Button - Will Not Leave Signature On Vehicle (Warranty Intact Power Added!) - 4 Fault Modes (Clogged Line/Broken Line/Pump/Solenoid) - Cleans Engine Combustion Of Carbon Build Up - Reduced Emissions (Less Regen) - Reduced EGTs 100-300 Degrees - Increased HP 65+ - Increased Boost - Made In USA This Part Fits: Year Make Model Submodel 2006-2016 Chevrolet Express 2500 Base 2006 Chevrolet Express 2500 LS 2006 Chevrolet Express 2500 LT 2006-2016 Chevrolet Express 3500 Base 2011-2016 Chevrolet Express 3500 LS 2011-2016 Chevrolet Express 3500 LT 2001-2005 Chevrolet Silverado 2500 HD Base 2021-2026 Chevrolet Silverado 2500 HD Custom 2015-2026 Chevrolet Silverado 2500 HD High Country 2001-2006 Chevrolet Silverado 2500 HD LS 2001-2026 Chevrolet Silverado 2500 HD LT 2007-2026 Chevrolet Silverado 2500 HD LTZ 2004-2026 Chevrolet Silverado 2500 HD WT 2024-2026 Chevrolet Silverado 2500 HD ZR2 2007 Chevrolet Silverado 2500 HD Classic LS 2007 Chevrolet Silverado 2500 HD Classic LT 2007 Chevrolet Silverado 2500 HD Classic WT 2001-2005 Chevrolet Silverado 3500 Base 2001-2006 Chevrolet Silverado 3500 LS 2001-2006 Chevrolet Silverado 3500 LT 2004,2006 Chevrolet Silverado 3500 WT 2007 Chevrolet Silverado 3500 Classic LS 2007 Chevrolet Silverado 3500 Classic LT 2007 Chevrolet Silverado 3500 Classic WT 2015-2026 Chevrolet Silverado 3500 HD High Country 2007-2026 Chevrolet Silverado 3500 HD LT 2007-2026 Chevrolet Silverado 3500 HD LTZ 2007-2026 Chevrolet Silverado 3500 HD WT 2006-2016 GMC Savana 2500 Base 2006-2016 GMC Savana 3500 Base 2011-2016 GMC Savana 3500 LS 2011-2016 GMC Savana 3500 LT 2020-2026 GMC Sierra 2500 HD AT4 2024-2026 GMC Sierra 2500 HD AT4X 2002-2005,2015-2021 GMC Sierra 2500 HD Base 2011-2026 GMC Sierra 2500 HD Denali 2024-2026 GMC Sierra 2500 HD Denali Ultimate 2022-2026 GMC Sierra 2500 HD Pro 2001-2002,2006 GMC Sierra 2500 HD SL 2001-2026 GMC Sierra 2500 HD SLE 2001-2026 GMC Sierra 2500 HD SLT 2003-2014 GMC Sierra 2500 HD WT 2007 GMC Sierra 2500 HD Classic SL 2007 GMC Sierra 2500 HD Classic SLE 2007 GMC Sierra 2500 HD Classic SLT 2007 GMC Sierra 2500 HD Classic WT 2002-2005 GMC Sierra 3500 Base 2001-2002,2006 GMC Sierra 3500 SL 2001-2006 GMC Sierra 3500 SLE 2001-2006 GMC Sierra 3500 SLT 2004-2006 GMC Sierra 3500 WT 2007 GMC Sierra 3500 Classic SL 2007 GMC Sierra 3500 Classic SLE 2007 GMC Sierra 3500 Classic SLT 2007 GMC Sierra 3500 Classic WT 2020-2026 GMC Sierra 3500 HD AT4 2015-2021 GMC Sierra 3500 HD Base 2011-2026 GMC Sierra 3500 HD Denali 2024-2026 GMC Sierra 3500 HD Denali Ultimate 2022-2026 GMC Sierra 3500 HD Pro 2007-2026 GMC Sierra 3500 HD SLE 2007-2026 GMC Sierra 3500 HD SLT 2007-2014 GMC Sierra 3500 HD WT ## Details - **Price:** 1747.07 CAD - **Vendor:** Snow Performance - **Type:** Water Meth Kits ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 1747.07 CAD | In stock | ## Images - Photo - Primary - Photo - Primary - Photo - Primary - Logo Image --- > Source: [Standard Auto Part](https://www.standardautopart.com/products/snow-performance-chevy-gmc-stg-3-boost-cooler-water-injection-kit-ss-braided-line-4an-fittings) > Updated: 2026-07-01