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Massive amounts of air and fuel going into the engine is vital, but keeping the engine happy at higher boost levels was a big concern. Creating a win-win for our GM Performance Parts crate engine, Snow Performance makes a Stage 2 water methanol injection kit for GM trucks with Mass Airflow Sensors (MAF). By picking up the voltage signal from the MAF, the Stage 2 kit can quickly and accurately deliver the water methanol mixture, which instantly cools the air intake temps and raises the fuel octane to race gas levels. The Stage 2 kit also includes a digital variable controller that increases pump output based on input voltage. What this means for the engine is that high boost levels are achieved safely and without fear of harming the internals. Even if you're truck isn't going to receive a supercharger, the Snow Performance water methanol kit can add serious horsepower easily, safely, and without breaking the bank.