K&N High Flow Air Filter 2008-2021 WRX / 2008-2017 STI / 2005-2009 Legacy GT

Upgrade your Subaru’s performance with the K&N High Flow Air Filter designed for WRX, WRX STI, and Legacy GT models. This premium panel-style filter boosts horsepower by 1 to 4 h.p. while maintaining excellent filtration efficiency, helping your engine breathe better and accelerate faster. It’s a direct-fit replacement that installs easily into your factory air box without modifications.

Crafted with multiple layers of oiled surgical cotton gauze, this washable and reusable filter delivers 96 to 99 percent filtration efficiency, protecting your engine from harmful contaminants. Measuring 0.938 inches in height and roughly 8.75 by 8.56 inches in length and width, it’s built to last the life of your vehicle and can go up to 50,000 miles before cleaning is needed, depending on driving conditions.

Ideal for Subaru enthusiasts looking for reliable, long-lasting intake upgrades, this K&N filter supports OEM electronics and is backed by a limited million-mile warranty. Enhance your WRX, WRX STI, or Legacy GT’s performance today with Subimods’ trusted selection.