Snow Performance Chevy/GMC Stg 2 Boost Cooler Water Inj. Kit (SS Brded Line/4AN Fittings) w/o Tank

The stainless steel braided line and 4AN fittings on this Snow Performance Stage 2 Boost Cooler kit are a solid choice for Duramax owners looking to manage exhaust gas temperatures and unlock more power. This system is designed to work across the entire boost range of your Chevy or GMC diesel, helping to keep your engine running cooler and cleaner. It's a popular option for daily driven trucks that do some light towing, offering a notable improvement in performance and engine longevity.

At the heart of this kit is the VC-50 controller, which also functions as a 52mm boost gauge. It uses a 7-color OLED screen to display boost pressure, injection percentage, secondary nozzle activation, and even fault codes. You can adjust the start and full points for the water-methanol injection to precisely match your engine's needs and boost curve. This progressive injection system means you get more cooling and performance when you need it most, during higher boost situations, while still benefiting from the water-methanol mix at lower boost levels for a smoother, more consistent power delivery.

This kit is designed for a range of Duramax engines, including LBZ, LLY, LMM, LML, and L5P found in various Chevrolet Express, Silverado, GMC Savana, and Sierra models from the mid-2000s through 2022. While this kit doesn't include a tank, it's ready to integrate with your existing setup or a separately purchased tank. Keep in mind that this system is not CARB approved and cannot be shipped to California.