Snow Performance 15 PSI Boost SwitchThe Snow Performance water methanol boost switch engages a water methanol pump at max duty cycle once a certain boost PSI has been reached. The switch then shuts the system off once boost pressure drops below the boost set point. Adjustable (1 15 PSI) to engage at the appropriate amount of boost pressure for your application. Great for low boost applications looking for a cooling & octane enhancement while under heavy throttle. Features: Adjustable (1