PPE's Air-To-Water Intercooler offers significantly lower pressure drop over traditional intercoolers. Increased air flow is achieved with a large internal core for increased heat transfer and reduced restriction. Designed for use with high-CFM turbos and superchargers. Featuring Aluminium construction, welded 1/2 inch NPT inlet/outlet and a compact design, PPE'sAir-To-WaterIntercooler saves space in your build and increases output efficiency.