Design Engineerings next generation method of chilling the temperature of fuel before entering the intake stream - the CryO Fuel Chiller System! The new CryO Fuel Chiller System uses the cryogenic properties of liquid CO to charge a series of internal cryogenic chambers surrounding the center fuel line chamber. As the fuel passes through the center chamber the cryogenic-charged chambers super cool the fuel by maximizing the thermal transfer process removing heat four times more effectively than any other system available today. As the temperature of fuel is reduced it increases in density. The denser fuel results in better and more efficient burning of the fuel - consequently generating more power and greater fuel efficiency. Under hood heat created by high pressure fuel pumps, headers exhaust manifolds and other heat generating components all combine to raise the temperature of fuel and creates a potentially lean condition or vapor lock that can damage the engine. The CryO Fuel Chiller System can be used along with your existing CryO system, or a nitrous oxide system to lower fuel temperatures and improve HP and efficiency and reduce the chances of engine damage. Each CryO Fuel Chiller System comes with Two -4AN and -6AN fittings Two 3/8 in. barb fittings Mounting brackets and hardware 2-foot length stainless steel braided hose for use with -4AN fittings Requires a nitrous system or a CryO Tank and Installation Kit to complete installation