Mishimoto MMRAD-E46-01 Performance Radiator for BMW E46 M3 01-06

The S54 is an incredible feat of engineering. Its smooth power delivery, individual throttle bodies, and 8000-RPM redline create an unforgettable driving experience. As with any BMW, maintenance is key to prolonging the life of the vehicle and ensuring an unrivaled driving experience. With many of these vehicles seeing frequent track use, the Mishimoto team felt the need to develop a performance aluminum radiator that not only offered increased durability but the efficiency needed for track driving. Our team of engineers developed an extremely dense core for this E46 M3 radiator, which provides a greater number of coolant tubes and a very dense fin composition. This allows for more contact points for heat transfer, which results in increased heat exchange and greater efficiency. Additionally, this dense core provides a 32% increase in coolant surface area, a 15% increase in air surface area, and a 25% increase in coolant capacity. All of these factors contribute to lower temperatures and greater heat dissipation, ideal for those in warm climates and for track use. This BMW radiator is designed for a complete bolt-on fitment, with no modifications necessary for installation with the stock fan and shroud. Our BMW radiator end tanks are constructed from high-quality aluminum TIG-welded to a 100% brazed aluminum core. This not only helps with heat transfer but provides the reliability needed for years of service. Pair this E46 M3 radiator with the Mishimoto BMW E46 M3 Silicone Radiator Hose Kit for increased durability compared to your stock rubber hoses. This BMW radiator is compatible with most aftermarket supercharger kits, providing the cooling power needed for higher-than-stock power levels. As with all of our BMW parts, the Mishimoto E46 M3 Performance Aluminum Radiator includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship. For more on the development process, check out our build thread on our engineering blog! Direct fit for the 2001–2006 BMW E46 M3. Overall Size: 27.4" x 17" x 4.4" / Core Size: 22.83" x 16.14" / Rows: 2. Inlet & Outlet: Quick-disconnect / Core Thickness: 1.9" / Tank Wall Thickness: 0.08". 32% increase in coolant surface area with a 25% increase in coolant capacity. Mishimoto Lifetime Warranty.