Injen Technology has done it once again with this new short ram air intake for the 2018-2021 Subaru WRX STI Equipped with the H4-2.5L Turbo Engine. The Injen Technology SP1208 performance air intake system is the result of countless hours invested in research and development to provide a proven intake system designed to add power and performance to your STI. The Injen Technology SP1208 intake system is a direct replacement for that restrictive factory airbox and provides a engineered solution that allows that turbo to breathe deeply and produce it's full power potential with a simple drop-in install. To top it all off, no tune is required to get the power numbers noted!

• Note: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
• Injen's MR Technology provides massive power gains while maintaining A/F ratios
• Includes custom heat shield specifically designed for this application
• Smooth intake piping eliminates restrictions and improves airflow
• Dyno Proven gains of up to 26 hp and 24 lb-ft. of torque
• No additional tuning required and no check engine lights
• Huge 3.250in mandrel-bent 6061-T6 aluminum intake tubing
• Fully serviceable Injen SuperNano-Web dry air filter
• Features Injen's patented MegaRam (MR) Technology
• Replacement air filter part number X-1059-BB
• Aggressive engine tone under full throttle
• Injen Technology Limited Lifetime Warranty
• Optional Hydroshield part number 1040BLK
• Available in multiple finishes
• Made in Pomona California, USA
• Short Ram Air Intake Design
• SP1208WB (Wrinkle Black)
• SP1208WR (Wrinkle Red)
• SP1208P (Polished)

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