Upgrade from your stock heat exchanger to the MAD front mount heat exchanger w/ heat shield for maximum performance and reliability! Give your BMW M3, M4, or M2 Competition the reliability it deserves by upgrading to the MAD S55 heat exchanger. The MAD cooler is significantly larger than the stock unit, offering a noticeable improvement over the small top mount currently on the car. Features: Larger than stock High quality core with a high fin density Direct fit, no modification needed Fitment: 2015-2019 BMW M3 & M4 2018+ M2 Competition w/ the S55 engine SKU:MAD-027