HKS Racing Suction Intake System - Subaru WRX STI VAB/VAF 15-21

Description

Note: NOT CARB Legal - This product is not currently CARB exempt and is not available for purchase in California & CARB States or for use on any vehicle registered with the California Department of Motor Vehicles.

Features:
- Kit includes Super Power Flow and Aluminum Suction pipe. Polished aluminum pipe improves engine room appearance.
- Enjoy a distinctive induction sound.
- Improving an air intake efficiency, HKS changed from flexible stock rubber hose to aluminum pipe. This significantly reduces an airflow restriction at an HKS flow bench test compared to the stock intake system.
- Removable air duct (air guide) which has a wide opening is newly designed. This can be directly used on stock ECU even for the normal vehicle or the vehicle with a custom muffler. You can reduce more air intake resistance, removing the air guide. (*)
- (*) ECU setting is required when combination use of the metal catalyzer or removing the airflow adapter guide.