AEM DryFlow Air Filter 2.75in x 9in Replacement Filter for AEM Cold Air Intake (21-2029DK) | Subaru STI 2008-2014

The AEM DryFlow Air Filter 2.75in x 9in Replacement Filter is designed for 2008–2014 Subaru STI owners running an AEM Cold Air Intake who want consistent airflow, reliable filtration, and easy maintenance. Engineered with AEM’s oil-free DryFlow media, this filter provides high airflow while effectively trapping harmful contaminants, helping maintain performance and engine protection without the need for oil recharging.

KEY FEATURES

• Direct replacement air filter for select AEM Cold Air Intake systems
• Oil-free DryFlow synthetic filter media delivers high airflow with excellent filtration
• Washable and reusable design allows easy cleaning without oiling
• Maintains consistent airflow to support engine performance and throttle response
• Durable construction designed for long service life in street and performance use

TECHNICAL SPECIFICATIONS

• Filter Media: AEM DryFlow oil-free synthetic material
• Inlet Diameter: 2.75 inches
• Filter Length: 9 inches
• Application Type: Replacement filter for AEM Cold Air Intake systems
• Maintenance: Washable and reusable; no oil required
• Performance Benefit: Supports consistent airflow and effective engine filtration

VEHICLE FITMENT

• Subaru STI 2008–2014

AEM Induction engineers high-performance air intake systems, filters, and airflow solutions designed to increase power, improve throttle response, and deliver reliable performance through advanced materials and proven engineering.