The Mishimoto Performance Aluminium Radiator for BMW E46 non-M vehicles is designed and engineered to reduce coolant temperatures by 19°F (10.5°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 BMW E46 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 E46 radiator to feature a 20% increase in coolant capacity over the stock radiator. The Mishimoto E46 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! This innovative radiator design features CNC inlets and outlets that work perfectly with your stock plastic quick-disconnect and Mishimoto E46 Non-M Radiator Hoses! The Mishimoto BMW E46 radiator comes in two separate versions for manual and automatic transmissions; with the automatic transmission model featuring an auxiliary inlet port for the stock automatic transmission cooler connection. Every Mishimoto aluminium radiator is a direct-fit making installation effortless. Like all Mishimoto BMW performance parts, this radiator includes the Mishimoto Lifetime Warranty, ensuring superb Products quality and craftsmanship.