
The COBB 616X01P-BL Stage 1+ Power Package for the 2015–2018 Subaru WRX STI combines the most proven tuning platform in the industry—the Accessport V3—with COBB’s SF Intake System and Airbox, featuring the Blue intake pipe. This package is engineered to deliver significant performance gains, enhanced throttle response, smoother power delivery, and improved airflow, all while maintaining OEM-like reliability and fitment.
At the heart of the kit is the COBB Accessport V3 (AP3-SUB-004), the world’s best-selling Subaru tuning device. It offers flexible ECU flashing, monitoring, logging, and Off-The-Shelf maps designed specifically for this package. Paired with the SF Intake System and Airbox, the Stage 1+ package reduces airflow restrictions, promotes cooler intake air temperatures, and creates a more responsive and enjoyable driving experience.
Unlike typical aftermarket setups, the SF Intake features a composite intake body, CFD-designed velocity stack, straightener grid, and an enclosed airbox for maximum consistency and safe MAF scaling. This package is also 50-state legal, making it an excellent upgrade for enthusiasts who want improved performance without emissions concerns.
Complete Stage 1+ Power Package for 2015–2018 Subaru WRX STI
Includes COBB Accessport V3 (SUB-004)
Includes SF Intake + Airbox with Blue intake pipe
50-State Emissions Legal
Composite intake body offers excellent heat rejection
Velocity stack and straightener grid ensure accurate airflow and MAF scaling
Improves horsepower, torque, throttle response, and driveability
Proven OTS tuning support through Accessport Map Database
OEM-quality fit, finish, and hardware
Ideal for reliable daily performance upgrades
Intake Pipe Color: Blue
Included Tuning Device: Accessport V3 SUB-004
Intake Material: High-temperature plastic composite
Filter Type: Reusable pre-oiled cloth filter
Intake Type: Short-Ram + Cold-Air hybrid with sealed Airbox
Emissions Status: 50 State Legal
Fully bolt-on installation
No permanent modifications required
Accessport V3 allows instant ECU flashing and monitoring
Typical install time: 1–2 hours for full package
Intake requires OTS tune (included via Accessport)
50-State Legal
Package must be used with included Accessport maps for proper performance
Designed specifically for STI models only (not WRX)