Project Gamma Black Charge Coolers - BMW M3 | M4 | M2C (F8x)Project Gamma charge coolers for the S55 engine feature increased core size and capacity at 60% more than the OEM coolers. Our charge coolers are designed for using 3D scanning to provide perfect and precise fitment. The water connections along with sensor ports are utilized the same way as OEM to allow for the same installation methods. We offer black or red coating for a clean look in the engine bay once installed.