Mishimoto has developed a silicone intercooler hose kit for the 2001-2005 Subaru WRX.Mishimoto Subaru WRX Silicone Intercooler Hoses combine high grade silicone with heat-resistant embedded fibers to handle high temperatures and additional boost pressure.Each hose has a smooth interior surface to deliver increased airflow to the WRX top mount intercooler.Mishimoto uses four hand-wrapped layers of silicone fortified with heat resistant fibers in the WRX Intercooler Hoses, ensuring a lifetime of durable performance.Mishimoto Subaru WRX Silicone Intercooler Hoses are engineered for a direct OEM replacement fit.The kit includes a inYin hose, a throttle body coupler, and a hose to connect the blow-off valve to the turbo inlet.The hoses are available in black, blue and red to customize the style of your engine bay as you upgrade performance.