Here at Mishimoto, We've decided to expand our line of 2015?2021 Subaru WRX STI products. Designed for applications that demand the greatest airflow and cooling capabilities, the Mishimoto 2015-2021 Subaru WRX STI Front-Mount Intercooler will provide your 2015-2021 Subaru WRX STI with the ability to make the most horsepower and torque possible. This 2015-2021 Subaru WRX STI intercooler kit was designed with the same 28in intercooler as our 2015-2021 Subaru WRX STI front-mount intercooler kit. The massive 3.5in thick core will support up to 600 whp or 30 psi of boost pressure! Smooth cast end tanks make for uninterrupted airflow through the cooler. This results in an intercooler that provides the best airflow and cooling capabilities without excessive pressure drops. Your fully built rally car will have no problem keeping a dense, cold, intake charge with this highly engineered 2015-2021 Subaru WRX STI intercooler kit. The Mishimoto 2015-2021 Subaru STI Front Mount Intercooler is available in black, silver, and gold to add some style to your upgraded intercooler. This intercooler is also covered by the Mishimoto Lifetime Warranty for a worry-free installation that keeps you going. Front-Mount Intercooler and Crash Beam, fits Subaru WRX STI 2015-2019