A Mishimoto performance aluminium 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% brazed aluminium and polished end tanks, this lightweight two row core radiator will enhance the overall performance and lifetime of your engine. This aluminium radiator, like all Mishimoto radiators, is backed by our unparalleled Mishimoto Lifetime Warranty. Check out the 2006 2011 Civic Si hose kit, for even greater cooling efficiency.