The Mishimoto 2015-2020 BMW F80 M3/M4 Intercooler YMB is a direct-fit, all-aluminum intercooler designed to maximize cooling efficiency in your BMW M3/M4. This intercooler features a bar-and-plate core design, which is more efficient than a tube-and-fin design, and is CNC-machined to ensure perfect fitment and optimal air flow. The intercooler is also designed to provide maximum cooling efficiency, and features a high-quality powder-coated finish for maximum durability. This intercooler is a great upgrade for those looking to increase the performance of their BMW M3/M4.