The hoses are available in black, blue, and red to customize the style of your engine bay as you upgrade performance. The kit includes a "Y" hose, a throttle body coupler, and a hose to connect the blow-off valve to the turbo inlet. Conman1667 This Mishimoto inlet hose is very big and stiff, which is good so that it wont collapse under high boost. Mishimoto Silicone Intercooler Hoses for the Subaru WRX are engineered for a direct OEM fit. The Mishimoto Silicone Ancillary Hose Kit for Subaru WRX/WRX STI is made from a combination of high-grade silicone & heat-resistant embedded fibers for a high-quality replacement for your OEM rubber hoses. Mishimoto uses four hand-wrapped layers of silicone fortified with heat resistant fibres in the intercooler hoses for the WRX, ensuring a lifetime of durable performance. This kit includes the upper radiator hose, lower radiator hose, overflow port hose, as well as four worm-gear clamps for ease of installation. Each hose has a smooth interior surface to deliver increased airflow to the WRX top mount intercooler. Rubber is out, silicone is in Upgrade your stock radiator hoses with the Mishimoto Silicone Radiator Hose Kit to provide your WRX with an advancement in both style and reliability. Mishimoto Silicone Intercooler Hoses combine high-grade silicone with heat-resistant embedded fibres to handle high temperatures and additional boost pressure. Mishimoto has developed a silicone intercooler hose kit for the 2001-2005 Subaru WRX. Made of high-grade silicone and heat-resistant embedded fibres.