An ideal upgrade for the brittle stock radiator, the Mishimoto E30E36 X - Line Performance Aluminum Radiator provides your vehicle with enhanced reliability and improved cooling efficiency. BMWs are known to have frequent cooling - related failures due to the use of numerous plastic components throughout the system. A simple coolant leak can result in overheating, accelerated engine wear, or head gasket failure. Whether you have a daily - driven E36 M3 or an M20 spinning a large turbocharger, this radiator provides ideal temperatures on and off the track. Most people overlook the importance of installing an upgraded radiator in their vehicle. This X - Line Performance Aluminum Radiator reduces coolant temperature by 30 degrees Fahrenheit (16.62 degrees Celsius) and is 20 - percent more efficient than the stock radiator. Along with providing an increased coolant capacity of 91 - percent, this radiator improves heat dissipation, which is beneficial for both stock and modified applications.