This Perrin replacement filter is a perfect fit for 2008 - 2021 Subaru WRX and STI models. It's a direct substitute for 2008+ WRX & STI intakes and works with any intake system that accepts a 2.75-inch filter. Key features include an overall width of 6 inches, an overall height of 11 inches, an inside diameter of 2.75 inches, and it's an open cell foam, oiled filter type. Installation is a breeze, taking just about 5 minutes, and it comes with a 5-year manufacturer warranty. Its unique two-piece design lets you easily remove the foam filter element for cleaning. Just run it under a faucet and ring it out by hand. Then, slip the foam sleeve back over the filter frame and you're good to go.
Using this filter is easy. First, make sure your Subaru WRX or STI (from 2008 - 2021) is turned off. Then, replace your old filter with this Perrin filter. The installation should only take about 5 minutes. When it comes to maintenance, thanks to its two-piece design, you can take out the foam filter element. Just run it under a regular faucet to clean it and squeeze out the water by hand. After that, put the foam sleeve back on the filter frame. As for the warranty, it lasts for 5 years. If you have any problems during this time, contact the manufacturer. Always check the filter regularly to ensure it's working well and replace it when it's too dirty to clean effectively.
