ALL THE PERFORMANCE WITH THE NOISE! The Hybrid valve is back! As the car is driven harder, the valve opens further and more of the atmosphere venting port is exposed for a louder sound. Subaru WRX MY01-07, STi MY02-on, XT Forester MY05-08.
The sound is amazing without losing performance or having issues in idle like when you eliminate the recirculation hose
El sonido es increible sin afectar el rendimiento del motor ni tener problemas con la baja como cuando eliminas la manga de recirculacion