Fitment Information: This high - performance air filter is specifically designed for 2019 - 2021 Subaru STI and 2018 Subaru STI Type RA. Features: The PERRIN High - Flow Washable Replacement Air Filter is a game - changer! It significantly boosts power and airflow, while efficiently removing harmful particles from the incoming air. Installation is a breeze, making it one of the simplest yet most effective upgrades for your car. This drop - in air filter uses open cell foam to trap dust and dirt. The foam filter elements provide outstanding performance with minimal airflow restriction and an impressive dirt - holding capacity. What's more, it's washable and reusable, meaning it can last the entire lifespan of your vehicle. Key benefits include increased airflow, improved power and torque, enhanced throttle response. It's an open - cell foam filter type, can be easily cleaned and re - oiled, and installation is straightforward. It also comes with a 5 - year manufacturer warranty and is sold individually.
Using this Perrin air filter is easy. First, locate the existing air filter in your 2018 Subaru STI Type RA or 2019 - 2021 Subaru STI. Carefully remove the old filter and replace it with the new Perrin drop - in air filter. Make sure it fits snugly in place. As for maintenance, when you notice a decrease in performance or the filter looks dirty, it's time to clean it. Take the filter out and gently wash it with a mild detergent and water. Rinse it thoroughly and let it dry completely. Then, re - oil the filter following the manufacturer's instructions. A few things to note: Always follow the installation steps carefully to avoid any issues. When cleaning, don't use harsh chemicals as they can damage the foam. And keep in mind that this filter comes with a 5 - year warranty, so if you have any problems during this period, contact the manufacturer.
