Buy OEM Volkswagen Part # 21869AA121 (21869AA120). Charge Air Cooler Pipe. Turbocharger Intercooler Pipe. Hose Air Duct. Turbocharger Intercooler Tube If your Subaru is equipped with a

A Pipe that transfers Compressed Air to from the turbo or Super Charger to the Intercooler.

HOSE-AIR DUCT Intercooler Pipe

Fits STI, WRX

Turbocharger Intercooler Tube
If your Subaru is equipped with a turbo and you've noticed a reduction in acceleration or a hissing on acceleration accompanying your check engine light, your intercooler or its piping/tubes may need to be repaired or replaced.