Mishimoto Universal Dual-Pass Air-to-Water Heat Exchanger (1000HP)There are some aspects of a build where corners can be cut, but your charge air cooling system shouldn't be one of them. Big turbochargers make big power, and big power often results in high temperatures. Within the last decade, we've seen many turbocharged vehicles transitioning to liquid to air intercooling systems. The air to water heat exchanger plays a vital role in these systems by reducing coolant temperatures before entering the intercooler.