The AEM 28-50092 DryFlow Air Filter is designed to deliver enhanced airflow, efficient filtration, and long-lasting performance for 2019–2021 Subaru WRX STI models equipped with the 2.5L engine. Utilizing advanced synthetic, oil-free filtration media, this high-performance filter provides a perfect balance of airflow and protection—supporting improved throttle response, horsepower, and engine efficiency.

The washable and reusable design eliminates the need for oiling, reducing maintenance time and long-term costs. Its precision fit ensures a secure seal within the factory air box, preventing unfiltered air from bypassing the filter. Built from durable materials that withstand repeated cleanings, the AEM 28-50092 maintains peak filtration performance under a variety of driving conditions.

Whether used as an OEM replacement or a performance upgrade, this DryFlow filter offers a practical, sustainable, and reliable solution for drivers seeking maximum efficiency and long-term engine protection.

Features:

• Washable and reusable DryFlow synthetic filter media for easy maintenance

• Oil-free design ensures consistent performance and eliminates messy upkeep

• Optimized for improved airflow and throttle response

• Designed for a precise fit on 2019–2021 Subaru WRX STI 2.5L models

• Durable construction withstands multiple cleanings and long-term use

• Provides excellent filtration to protect the engine from dirt and debris

• Enhances power and efficiency for daily driving or performance applications
  

Fitment:
2019 Subaru WRX STI Base
2019 Subaru WRX STI Limited
2019 Subaru WRX STI S209
2020 Subaru WRX STI Base
2020 Subaru WRX STI Limited
2021 Subaru WRX STI Base
2021 Subaru WRX STI Limited