SPEEDFACTORY RACING B16 FILL POT W -16AN FITTINGSWhether you have a custom radiator or a SpeedFactory Race Tucked radiator for your racing application, you need a proper way to fill and bleed air from your B Series engine's cooling system from the highest point and we have the solution. SpeedFactory Racing Honda Acura B Series Cooling System Fill Pots are compatible with most aftermarket radiator setups, and change the high point of your cooling system for easy filling and system air bleeding. Your