Buy 2011 Subaru WRX Charge Air Cooler. INTER Cooler. Intercooler If your Subaru is equipped with a Engine, Acceleration - OEM Subaru Part # 21820AA470

Intercooler.

INTER COOLER ASSEMBLY Intercooler

Fits STI

Intercooler
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.