08/13/2026
Installed the COBB SF Intake + Airbox on this 2012 STI last week.
The kit is designed to improve airflow into the turbo while using the factory snorkel to draw in cooler outside air and the airbox to help shield the intake from engine bay heat. This intake also allows you to enjoy the beloved bypass valve sounds without having to install an aftermarket valve.
The SF Intake is also engineered to maintain a stable MAF signal, helping provide consistent airflow measurement for the ECU.
As with any intake change, the ECU calibration needs to be appropriate for the installed hardware. With the tune completed, the induction sounds can be enjoyed with a little more of that beloved turbo soundtrack. 👌