The AAM Competition R-Line Oil Cooling System is designed to ensure peak performance under extreme driving conditions. Designed to work in tandom with the factory (OEM) GT-R oil cooler, the AAM Competition R-Line Oil Cooing System is proven to drop oil temperatures by an astonishing 50-90 degrees Fahrenheit with its highly efficient Oil to Water cooling core. This incredible reduction in temperature greatly increases theoverall efficiency of the GT-R's cooling system, resulting in lower engine temperatures and lower transmission termperatures. Engineered for GT-R owners who want the best performance possible while pushing their car to the limits, the AAM Comeptition R-Line Oil Cooling System is the most advanced and effective GT-R engine cooling option available.