Drop engine temps with the Mishimoto Focus ST radiator. The Focus ST is a great car for doing some laps at the autocross or ripping around a road course, but has some trouble keeping cool. High engine temperatures will send you straight into limp mode and into the pits, and that's no place to win races. This intricate Mishimoto Focus ST radiator has been designed for maximum cooling efficiency to keep you out on the track longer. The all-aluminum construction and 34mm, 2-row core result in a 16.6% increase in coolant surface area and 10.7% increase in air surface area! A lot of highly engineered pieces went into making the Focus ST radiator. The CNC-machined quick-disconnect fittings allow for easy attachment of the stock radiator hoses. The precision-cut mounting points make this radiator fit like stock with all factory equipment. Push this radiator to the limit, as the included Mishimoto Lifetime Warranty ensures superior craftsmanship with all Mishimoto Focus ST parts.