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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
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
