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Product Fitment:
2023-2025 Subaru Ascent
2023-2025 Subaru Legacy Sport / XT
2023-2025 Subaru Outback XT / Wilderness
Unlock reliable performance gains with the COBB Stage 1 Power Package for 2023–2025 Subaru Ascent, Outback XT, Outback Wilderness, and Legacy XT/Sport models. This package combines the industry-leading Accessport V3 with a High Flow Filter, delivering improved throttle response, increased power, and enhanced drivability while maintaining full emissions compliance.
At the heart of this package is the COBB Accessport, the world’s best-selling and most flexible ECU tuning solution for Subaru vehicles. By replacing conservative factory ECU settings with optimized calibrations, the Accessport unlocks hidden performance while preserving daily-driving comfort and reliability. Users can run pre-loaded Off-The-Shelf (OTS) maps or opt for custom tuning to support future modifications, making this a long-term engine management solution.
The included High Flow Filter improves airflow efficiency, supporting the Stage 1 calibration and helping the engine breathe more freely without sacrificing filtration quality. Together, these components provide a balanced performance upgrade that is easy to install and ideal for both daily driving and enthusiast use.
This product is 50-state legal and approved for use on emissions-controlled vehicles. It carries a California Air Resources Board (CARB) Executive Order and is legal for sale and on-street use when installed according to the manufacturer’s application guide.
CARB EO Number: D-660-247
COBB Stage 1 Power Package for select 2023–2025 Subaru models
Includes Accessport V3 (SUB-007)
Includes High Flow Air Filter
Pre-loaded Off-The-Shelf (OTS) performance maps
Supports future custom tuning and staged upgrades
Improves horsepower, torque, and throttle response
Easy installation with factory-level integration
50-state emissions legal
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