K&N Drop In Air Filter Subaru WRX 2008-2021 / STI 2008-2018 / Legacy GT 2005-2012 | 33-2304

This K&N replacement air filter is a perfect fit for your Subaru. It's designed for the WRX from 2008 to 2021, STI from 2008 to 2018, and Legacy GT from 2005 to 2012. With this filter, you'll experience a boost in horsepower and acceleration, all while getting excellent filtration. It's custom - made to fit right into your factory air box, making installation quick and easy. K&N stands behind this filter with a Million - Mile Limited Warranty. These filters use oil for filtration and can be cleaned and re - used with the K&N cleaning kit (sold separately).

Using your K&N air filter is super easy. First, locate your factory air box. Open it up and take out the old air filter. Then, place the new K&N air filter in the exact same spot. Close the air box, and you're good to go! As for maintenance, it's important to check the filter regularly. When it looks dirty, you can use the K&N cleaning kit (which you need to buy separately) to wash and recharge it. Just follow the instructions on the cleaning kit. Also, keep in mind that this filter comes with a Million - Mile Limited Warranty, but make sure to use it as intended for your Subaru WRX, STI, or Legacy GT models within the specified years.