snow performance maf-u water methanol controller (maf/map)

Progressively command water methanol injection based on the OEM mass air flow (MAF) or manifold absolute pressure (MAP) sensor installed on your vehicle. The MAF-U controller is a fully adjustable progressive water methanol controller that can inject more or less water methanol based on air flow into the engine. Ties directly into the OEM sensor output wire to read air flow into the vehicle.