For high performance needs, keeping a cars engine temperatures down and efficient is extremely important. Agency Power now offers this 5 ply silicone radiator hose kit for your 02-07 Subaru WRXAnd STI. These hoses replace both the top and bottom factory hose on your Subaru. The OEM rubber hose tends to burst under extreme heat and crack over time. These silicone hoses improve flow and are not affected by heat like rubber hoses. They come in 2 colors: Glossy red or blue. Each hose kit includes new clamps for easy installation on your Subaru.