The Mishimoto aluminium Radiator for BMW E46 non-M vehicles is designed and engineered to reduce coolant temperatures by 19? C), and to protect your car from overheating during aggressive driving or hot lapping sessions. It is the ideal upgrade for your 3-series, and will outlast the weak stock plastic radiators. The Mishimoto E46 non-M radiator features a large two-row core, 100% brazed aluminium construction, and polished end tanks, resulting in greatly improved cooling efficiency for your engine.The engineers at Mishimoto designed this radiator to feature a 20% increase in coolant capacity over the stock radiator. The Mishimoto radiator also improves coolant surface are by 18% and air surface area by 41%. This aluminium radiator is an ideal upgrade to keep your E46 running cool!