This is a genuine STI Air Duct Hose from Subaru Technica International. Not only is this STI Air Duct Hose a great addition into your engine bay, but it also gives added strength to prevent bulging when using higher boost levels. The item installs directly from the intercooler to the throttle body. Once installed, you will be able to see the letters STI showing which looks great for any Subaru enthusiast. The STI Air Duct Hose is a very rare item that not many people have outside of Japan. 

Fits Subaru Models - SF, GC, GF, BD, BG