The F90 M5 & F9X M8 are truly worthy successors to the F1X platform. BMW's S63 Twin-Turbo V8 is a tried and true power plant capable of big numbers. Like most turbo engines, cranking up the boost for those big gains creates a lot more heat. Fortunately for F9X owners, CSF is here to help keep those Intake Air Temperatures (IATs) down and your power up. CSF used CFD analysis and testing to create the largest charge-air-cooler that could fit in the factory location. The custom designed Liquid-to-Air Intercooler cores are 100% larger than the factory coolers. The single piece design integrates the charge pipe creating the strongest system possible.