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
*Ended up using a different throttle body coupler than the one in this kit as it didn't fit well went with a STI coupler.