GReddy / GREX Oil Cooler Kits help prolong the life of your oil and in turn your internal engine components. Thereby relieving higher engine temperatures caused by hard driving. Factory oil coolers are normally small water-cooled devices sandwiched between the oil filter and engine block. These tax the cooling system even under normal driving conditions. GReddy / GREX oil coolers are an excellent addition, and are especially effective in harsh driving environments. By using a similar inner-fin core design Greddy were able to increase oil capacity, decrease oil temperatures, and extend engine and oil life. Greddy systems also offer an internal (or external) thermostat to allow for quick engine warm up. The efficient core and durable steel-braided lines ensure good flow and a leak free installation