The Snow Performance VC-100 brings true 2D mapped water-methanol injection delivery to your DI (direct fuel injected) and forced induction (turbocharged/supercharged) vehicle. The Stage 3.5 creates a 2D injection map based on boost and fuel pressure sensor input to deliver a highly accurate amount of water-methanol when the engine needs it most. Bringing fuel pressure into the mix allows the injection curve to be extended past specific boost points for greater range/control. Proven to reduce the air inlet temperature by up to 100 degrees and increase octane by 25points for maximum HP and cooling