AEM Cold Air Intake Red (21-863WR) | Subaru STI 2019-2021

The AEM Cold Air Intake Red is designed for 2019–2021 Subaru STI models, delivering increased airflow, improved engine efficiency, and enhanced throttle response compared to the factory intake system. By relocating the air filter outside the engine bay, this cold air intake draws in cooler, denser air to help support consistent performance gains while maintaining dependable daily drivability.

KEY FEATURES

• Cold air intake system engineered to improve airflow and overall engine efficiency
• Red-finished aluminum intake tubing promotes smooth airflow and corrosion resistance
• Relocated filter design draws in cooler air compared to stock intake configurations
• High-flow AEM air filter included for effective filtration and performance
• Designed to enhance throttle response and overall engine responsiveness

TECHNICAL SPECIFICATIONS

• Intake Type: Cold air intake system
• Construction: Aluminum intake tubing with red finish
• Filter Media: High-flow AEM air filter
• Installation: Direct-fit system utilizing factory mounting points
• Performance Benefit: Supports increased airflow and improved throttle response

VEHICLE FITMENT

• Subaru STI 2019–2021

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.