Get rid of the inventory air bladder in the firewall and reinstall with a new real TOYOTA air filter. Be mindful to leave ample base materials that it may however be bolted down. This flows good, and filters in addition to OEM. Talked with Brenden within the JJSMotors team. https://charliepkdul.blog-gold.com/34208576/fascination-about-subaru-ej20-engine-for-sale