Thottle Body Hose Subaru WRX 2008 - 2014 EJ255 | Roo RacingLike every other induction hose, pipe or connector in your Subarus engine bay, the OEM top mount intercooler coupler to the throttle body is made of plastic that just stand up to the test of time. After a few years of heat cycles and boost pressure the factory hose is bound to spring a leak causing a loss of power, increased fuel consumpation and an annoying hissing sound. The solution is simple, you swap that POS out with something better in this