Mishimoto 15-20 BMW F8X M3/M4 Performance Air-to-Water Intercooler Power Pack - Black SapphireAvailable in 7 BMW specific colors, your go fast parts in the engine bay can now match the exterior beauty of your F8X. The beauty is more than just skin deep too. Our improved core design features a bar and plate core with a 29% increase in core volume, as well as a unique single pass coolant flow layout for optimal heat transfer. Combined with our 16% increase in flow through the core we were able to record a 12F temperature drop in intake air