Mishimoto has developed a new line of air diversion plates to enhance your enginees cooling capacity. mishimoto air diversion platese expert design is not only intended to enhance the aesthetic appeal of your engine, but will incomparably reduce your radiatores coolant temperature. improving the cooling capacity of your engine will promote superior combustion efficiency and the overall performance of your engine. all mishimotoes air diversion plates are constructed of 5052 aluminum and are available in several finishes. choose from a natural brushed matte or an anodized glossy black or blue to enhance the look and style of your engine bay.