The Japspeed alloy radiator for Mazda MX-5 NA helps keep coolant temperatures under control. Upgrading to an aluminium radiator noticeably increases the cooling capacity. The 52mm depth increases the volume of coolant and the surface area of the radiator considerably. Supplied with a 1.3 bar cap, you can be sure that your car is ready for the track with an uprated alloy radiator. Specification 320x638x52mm 1.3 bar radiator cap included Direct replacement for the OEM radiator Please note the aluminium drain bung should only be tightened by hand to finger tight as the bung seals with an o-ring.