The Skidnation 50mm Thick Alloy Radiator for the Mazda MX-5 NB is designed for high-performance applications, making it perfect for modified cars with over 200hp, track, and race cars that demand greater cooling capacity. With a 50mm thick core, it significantly increases coolant volume and heat dissipation, ensuring optimal engine temperatures under heavy loads. Constructed from lightweight, TIG-welded aluminium, it offers excellent durability and corrosion resistance. This radiator comes with a 1.1 bar radiator cap and is a direct-fit replacement for the OEM unit, providing the enhanced cooling needed for turbocharged engines or demanding track conditions. Please note the drain plug has a rubber seal and should only be finger-tight. Features TIG-welded aluminium 50mm two-row core 1.1 bar radiator cap