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The Snow Performance Diesel Stage 3 Boost Cooler for Chevy/GMC Duramax is a water‑methanol injection system that uses a 2D‑mapped controller to meter injection by boost and EGT, targeting 100–300°F EGT reductions and up to 65+ hp to aid heavy towing. Red high‑temp tubing and quick‑connect fittings are included, the controller mounts without interior modification, and a 7‑gal tank is supplied for extended use.
Snow Performance Chevy/GMC Duramax Diesel Stage 3 Boost Cooler Water Injection Kit w/o Tank
