The AEM 19-21 Subaru WRX STI 2.5L H4 Cold Air Intake System is a performance upgrade designed to enhance airflow and increase horsepower and torque for Subaru WRX STI models from 2019 to 2021. Constructed with a mandrel-bent aluminum intake tube and featuring an oversized AEM DRYFLOW synthetic washable air filter, this system ensures optimal airflow, filtration, and durability. The high-quality hardware and custom heat shield work together to protect intake air from heat soak, promoting consistent power gains and improved throttle response. The conical filter design allows for up to 100,000 miles between filter services under normal highway conditions, making it a reliable upgrade for enthusiasts seeking increased performance and efficiency.
This cold air intake system is specifically designed for 2019-2021 Subaru WRX STI models equipped with the 2.5L H4 engine. It offers a direct bolt-on installation, replacing the factory intake for a straightforward upgrade. The system is ideal for street and performance driving, providing improved airflow and engine response without requiring additional modifications. The kit includes the intake tube, oversized filter, heat shield, and hardware necessary for installation. Suitable for daily drivers and track enthusiasts alike, this intake system enhances engine breathing and overall power output for a more aggressive driving experience.
