AEM Induction 22-474R Short Ram Intake System for Subaru WRX, STI, Forester Turbo

If you’re looking to give your Subaru a little more kick, the AEM 22-474R Performance Short Ram Air Intake System is worth checking out. I’ve had my fair share of aftermarket parts, and this one stands out for its straightforward installation and noticeable boost in power. It’s designed specifically for models like the Subaru Impreza WRX, WRX STI, and even the Forester Turbo, so you know it’s made to fit right without a hassle.

What I really appreciate is how it replaces that clunky factory air filter and intake housing. The oversized AEM Dryflow synthetic washable air filter does wonders for airflow and filtration, which means your engine can breathe easier. Plus, it’s oil-free and can go up to 100,000 miles before needing a clean—definitely a time-saver. When you hit the gas, the sound transforms into a deeper, more aggressive growl, making it clear that you’ve unlocked some serious horsepower. And speaking of horsepower, I’ve seen gains of about 12 HP at around 4095 RPM, which is nothing to sneeze at!

The intake tubing is made of mandrel-bent aluminum with a slick red powder-coated finish that not only looks good but also stands up to the elements. It fits right in with the factory emissions control setup, including the mass airflow sensor, so you won’t run into any issues there. Just keep in mind that while some AEM intakes are street legal in all states, you’ll want to double-check if yours is compliant, especially if you're in California.

Notes:

California Air Resources Board Exempt: Yes; CARB EO: D-670-15; AEM - Metal Intake System; Red (SRS)