Cobb Stage 1+ CAN Flex Fuel Power Kit Subaru Ascent / OBXT & Wilderness / Legacy XT 23-25 | SUB0070010-FF

Product Fitment: 

2023-2025 Subaru Ascent 

2023-2025 Subaru Legacy Sport / XT

2023-2025 Subaru Outback XT / Wilderness

Unlock the full potential of your turbo Subaru with the COBB Stage 1+ CAN Flex Fuel Power Package for 2023–2025 Subaru Ascent, Outback XT, Outback Wilderness, and Legacy XT/Sport models. This complete performance package delivers adaptive flex fuel tuning, improved airflow, and industry-leading ECU control—allowing your vehicle to automatically optimize performance based on ethanol content.

At the core of this package is the COBB Accessport V3, the world’s most trusted Subaru ECU tuning solution. The Accessport replaces conservative factory calibrations with optimized performance maps, delivering improved horsepower, torque, and throttle response while maintaining smooth daily drivability. It supports both Off-The-Shelf (OTS) maps and custom tuning, making it ideal for long-term performance upgrades.

This kit also includes the CAN Flex Fuel Upgrade and CAN Fuel Pressure Sensor Kit, enabling true plug-and-play flex fuel capability through the vehicle’s CAN system. These components provide real-time monitoring of ethanol content and fuel pressure, allowing the ECU to safely and accurately adjust engine calibration when running pump gas, ethanol blends, or E85. The included COBB High Flow Panel Filter improves airflow to support the Stage 1+ calibration without sacrificing filtration quality.

Designed for enthusiasts seeking flexible fueling options with factory-level integration, this package delivers reliable performance gains while preserving drivability and safety.

Emissions Compliance

This product is legal under EPA Anti-Tampering Policy provisions and verified by COBB Tuning to operate within federal emissions standards for on-street use in states that follow the Clean Air Act.
Not legal for sale or use in California on any emissions-controlled vehicle.
CARB testing is currently pending. Once approved and issued an EO number, this product will be updated to 50-state legal status.

Key Features

• COBB Stage 1+ CAN Flex Fuel Power Package

• Fits 2023–2025 Subaru Ascent, Outback XT, Outback Wilderness, and Legacy XT/Sport

• Includes Accessport V3 (SUB-007)

• COBB High Flow Panel Air Filter

• CAN Flex Fuel Upgrade

• CAN Fuel Pressure Sensor Kit

• True plug-and-play CAN integration

• Compatible with COBB Off-The-Shelf (OTS) maps

• Supports E85 and ethanol blend tuning

• Improves horsepower, torque, and throttle response

Ideal For

• Subaru owners looking to add flex fuel capability

• Enthusiasts who want adaptive performance without complex wiring

• Daily drivers seeking reliable, expandable tuning solutions