A top of the line Mishimoto performance aluminum radiator will keep your engine running at its finest and enhance the lifetime of your vehicle. Exclusively designed for the IS300, no cutting or modification is required. A Mishimoto radiator is the ideal upgrade to the stock Lexus radiator because it's designed and engineered to produce maximum cooling efficiency by providing a 30% increase in cooling. The Mishimoto Lexus IS300 radiator features a lightweight dual core, 100% brazed aluminum, and polished end tanks. All Mishimoto radiators come with a High Pressure 1.3 Bar Radiator Cap and a no questions asked warranty, including accident protection.