Lower EGTs 100-300 degrees and increase HP by 65+ with a cleaner, cooler running Diesel! The Snow Performance Diesel Stage 2 Boost Cooler isavailable for all diesel truckowners looking to have the benefit of water-methanol injection through out the trucks boost range. The Stage 2 utilizes a progressive VC-50controller (52mm gauge) that commands two water-methanol nozzles that proportionally inject more or less according to boost pressure. Start and full points are adjustable forengagement and delivery curve to match what the engine requires. Proportionally injecting according to boost pressure gives an accurate delivery of water-methanol andallows cooling and performanceimprovements over a wide rangefor improved drivability. The VC-50 controller (52mm gauge) offers the functionality of a boost gauge and water-methanolcontroller all in one! Highlighting a 7 color (Blue, White, Red, Yellow, Orange, Purple, Green) OLED screen displaying boost, percentage of injection, secondary nozzleactivation, prime button, and 4 fault codes directly on the screen you can tailor the controller to match your OEM gauges or mix and match up to two colors. 7 Gal Tank included for trip ready installation. Recommended for all daily driven diesel trucksthat see light towing.