Key Features:
- Direct Fit For: 2018-2021 Subaru WRX STI H4-2.5L Turbo
- Dyno Proven Gains of up to 26 hp and 24 lb-ft. of torque
- Short Ram Air Intake Design
- Features Injens patented MegaRam (MR®) Technology
- Injens MR Technology provides massive power gains while maintaining A/F ratios
- No additional tuning required and no check engine lights
- Huge 3.250in mandrel-bent 6061-T6 aluminum intake tubing
- Includes custom heat shield specifically designed for this application
- Fully serviceable Injen SuperNano-Web dry air filter
- Available in multiple finishes
- Aggressive engine tone under full throttle
- Smooth intake piping eliminates restrictions and improves airflow
- Made in Pomona California, USA
- Injen Technology Limited Lifetime Warranty
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.
HYDROSHIELD
Available Colors:
Replacement Air Filters:
Enhance your driving experience with the Injen SP1208P - SP Series Short Ram Air Intake System, designed specifically for the 2018-2021 Subaru WRX STI H4-2.5L Turbo. This polished intake system not only boosts performance but also elevates the engine's sound, delivering a more aggressive tone under full throttle.
Performance Benefits
The Injen SP1208P features a short ram air intake design that allows for improved airflow, which translates to significant gains in horsepower and torque. With dyno-proven results showcasing an increase of up to 26 horsepower and 24 lb-ft of torque, this intake system is engineered to unleash your vehicle's potential without requiring additional tuning or risking check engine lights.
Advanced Technology
At the heart of the Injen SP Series is the patented MegaRam (MR) Technology. This innovative engineering ensures massive power gains while maintaining optimal air-fuel ratios, allowing you to push your vehicle further without compromising reliability. The system integrates a substantial 3.250-inch mandrel-bent 6061-T6 aluminum intake tubing, which enhances durability and helps reduce restrictive airflow pathways.
Durable Design and Compatibility
This intake system includes a custom heat shield specifically tailored for the Subaru WRX STI, protecting the intake from excessive heat and ensuring consistent engine performance. Furthermore, the fully serviceable Injen SuperNano-Web dry air filter offers convenient maintenance, enhancing longevity and filtration efficiency.
Available in multiple finishes, including polished, wrinkle black, and wrinkle red, the Injen SP1208P allows you to match your engine bay style while enjoying superior functionality. Made proudly in Pomona, California, this product reflects quality craftsmanship backed by Injen Technology’s limited lifetime warranty.
Important Note
Please note that this product is not currently CARB exempt and cannot be purchased in California or used on any vehicle registered with the California Department of Motor Vehicles.
Hydroshield Option
Additional Options
For a complete look, explore our available colors:
Replacement Air Filters
Ensure your intake system performs at its best with our replacement options:
CARB None Compliant
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