Injen SP1208 Short Ram Intake - 2018-2021 Subaru WRX STI

The SP1208 gives the final EJ257-powered STI a proper intake growl and a less restrictive path into the turbo. Injen sized the 3.25-inch tube and MAF section specifically for the 2018-2021 STI, then paired it with a formed heat shield so the finished install looks intentional—not universal.

Fitment

• 2018-2021 Subaru WRX STI with the 2.5L turbo engine

Why it belongs on your build

• Dyno-tested gains of up to 26 hp and 24 lb-ft of torque
• 3.25-inch mandrel-bent 6061-T6 aluminum tubing
• Application-specific MAF calibration and heat shield
• Washable SuperNano-Web dry air filter
• Designed for the factory calibration with no additional tuning required by Injen

Important emissions information

This intake is not CARB exempt. Injen does not permit shipment to CA, CO, CT, DE, ME, MD, MA, MN, NY, NJ, OR, PA, RI, VT, and WA. Verify local emissions rules before ordering.

Fitment note: Please verify your exact year, model, engine, and existing modifications before ordering.