A Mishimoto performance aluminum radiator is the ideal upgrade to the stock Civic radiator. For a cooler more efficient running engine, all Mishimoto radiators are designed and engineered to maximize cooling, boost engine functions, and most importantly prevent your car from overheating. Made with 100 - percent brazed aluminum and polished end tanks, this lightweight dual core radiator will enhance the overall performance and lifetime of your engine. All Mishimoto radiators come with a high pressure 1.3 bar Mishimoto radiator cap and are backed with limited lifetime warranty. Fits USDM EP3 Civic SI (2002 - 2005) Fits UKDM EP3 Civic Type R (2002 - 2005)