Injen SP Short Ram Air Intake System Polished 2018-2021 STI

Upgrade your 2018-2021 Subaru WRX STI with the Injen SP Short Ram Air Intake System, designed to deliver impressive power gains and enhanced throttle response. This polished intake system is engineered for direct fitment, providing up to 26 horsepower and 24 lb-ft of torque without requiring additional tuning or triggering check engine lights.

Featuring Injen’s patented MegaRam (MR®) Technology, the intake maintains optimal air/fuel ratios while maximizing airflow through a large 3.250-inch mandrel-bent 6061-T6 aluminum tube. The system includes a custom heat shield and a fully serviceable SuperNano-Web dry air filter, ensuring durability and consistent performance. Its smooth intake piping reduces restrictions and adds an aggressive engine tone under full throttle.

Ideal for Subaru enthusiasts seeking reliable, bolt-on performance upgrades, this intake is made in Pomona, California, and backed by Injen’s limited lifetime warranty. Elevate your WRX STI’s power and sound—shop the Injen Short Ram Air Intake at Subimods today.