Intercoolers are an important part of forced induction systems of any kind. Compressing air creates heat and it's the intercoolers job to attempt to remove that heat. Available Hyper Thermal Transfer coating available to enhance heat transfer by up to 50% We offer both Water to Air and Air to Air Variants Depending on a variety of factors, some systems can run reliably without an inter-cooler. A 250 hp engine(base) looking to make 300 hp, would need 3.323 of non inter-cooled psi. An inter-cooled centrifugal unit would only need 1.299psi Although intercoolers aren’t ‘needed’, they do allow higher boost, with less chance of detonation. When choosing whether or not to use an intercooler, feel free to contact us with any question. Phone: 269-216-9955 Email: sales@superpowercharger.com Henry Ford