HKS RS GDB (C/D/E/F) EJ207 - HKS70020-AF103

HKS RS GDB (C/D/E/F) EJ207 is a Racing Suction Intake system specifically designed for the 2002-2007 Subaru Impreza WRX STI (GDB, EJ207/EJ25). It enhances performance by replacing the restrictive stock airbox with a high-flow, polished aluminum pipe and a Super Power Flow filter, reducing air turbulence and increasing horsepower and torque, particularly at high RPMs.

• Performance Enhancement: Improves air intake efficiency, reduces high-RPM restriction, and addresses engine knocking issues common in stock configurations.
• Filter Type: Features a 2-layer wet polyurethane filter, which is washable and reusable.
• Design: Utilizes a polished aluminum pipe designed to minimize bends, allowing smoother airflow.
• Engineered for: 2002–2005 (EJ205) and 2002-2007 (EJ207/EJ25) Subaru Impreza WRX STI (GDB).
• Considerations: Installation may require ECU tuning or aftermarket management (e.g., F-CON) to adjust for increased air flow. It is recommended to use with higher heat-range spark plugs.
• Compliance: This is a racing part and is not CARB approved.