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At AutoInstruct, we provide free tutorials to suit a wide range of vehicles and products. If you would like to say thanks, please click here to leave us a quick five-Star review on Google.
We would really appreciate it!
Team AutoInstruct
Here’s a very quick and easy tutorial for the GC8/GF8 Subaru Impreza WRX, that anybody can perform. We’ll show you how to change your Engine Air Filter. This filter needs to be replaced / cleaned as per your service intervals.

Lift the lid, and optionally remove it from the vehicle as we did. Use this opportunity to vacuum or wipe any collection of debris that is sitting at the bottom of the intake.

Install your new engine air filter into position. We chose a Cosworth Dry Filter to ensure longevity of our MAF Sensor.
Reinstall the air box lid by sliding it into the tabs beside the engine and secure into position. Clip down the metal clamps and reattach the MAF, hose clamp and coolant hoses.
