AEM Cold Air Intake System 21-732C for Subaru WRX 2015-2021 2.0L 4-Cyl Gunmetal Gray

If you're looking to get a little more life out of your Subaru WRX, the AEM 21-732C Performance Cold Air Intake System might just be what you need. This isn’t just any air intake; it’s specifically designed for the 2015-2021 WRX models, and trust me, it makes a noticeable difference. By swapping out that restrictive factory air filter and housing, you’re opening up a whole new world of horsepower and torque. We’re talking an estimated gain of about 25 HP at 4200 RPM. That’s not just numbers on paper—it's the kind of boost that gets your heart racing.

What's cool about this setup is the oversized AEM Dryflow synthetic washable air filter. It’s designed for great airflow and filtration, so you can breathe easy knowing your engine is getting the good stuff. Plus, it’s located right in the original air box, protected by a heat shield that helps keep intake air temperature down. That means more power and less heat soak, which is especially nice on those hot summer drives.

The intake tubing is made from mandrel-bent aluminum, finished in a sleek gunmetal gray. It’s not just for looks; this stuff is built to last. And installation? Super straightforward with just some common tools. You’ll be up and running in no time. Just make sure to check the legal status for your state—some AEM intakes are street legal everywhere, while others might not be legal in California.