AMS Performance 14-18 Mercedes-Benz CLA 45 AMG 2.0T Alpha Auxiliary Heat Exchanger UpgradeWhether you are running stock or upgraded components on your 2. 0L M133 turbocharged engine, the Alpha Performance Mercedes Benz CLA45 Heat Exchanger Upgrade offers much greater efficiency providing consistently cooler boost temperatures while combatting heat soak issues.? Beneficial throughout everyday driving, this level of cooling is even more crucial to consistent performance on a road course or dragstrip. This Part Fits: Year Make Model Submodel