BD’s free flowing Charge Air Cooler (CAC) - or intercooler - design with streamlined external air passages improves engine cooling while offering less fan noise and less blade resistance, plus, improving engine power and efficiency of the radiator and air conditioning heat exchangers. Designed through testing at 100+ psi turbo boost pressure and 500 degrees Fahrenheit turbo outlet temperatures, BD's extra thick cast end tanks with support struts have integrity and long life without ballooning and cracking. Other's Stuffed Tube CAC