COBB Stage 1 CAN Flex Fuel Power Package (SUB0041W1-1FF) | Subaru WRX 2015-2017
Description
Description
The COBB Stage 1 CAN Flex Fuel Power Package (SUB0041W1-1FF) equips your 2015–2017 Subaru WRX with the foundational hardware required to run COBB’s CAN-based Flex Fuel system. This upgrade introduces ethanol-blended fuel capability, expands tuning flexibility, and enhances overall drivability through improved knock resistance and smoother power delivery. As a Stage 1 configuration, it provides an accessible step into ethanol performance while maintaining OEM-like refinement.
KEY FEATURES
- Complete Stage 1 CAN Flex Fuel package for 2015–2017 Subaru WRX models
- Enables use of E85 and blended ethanol fuels via COBB’s CAN-integrated Flex Fuel logic
- Improves tuning adaptability and combustion stability under varying fuel mixtures
- Enhances throttle response, torque consistency, and daily drivability
- Compatible with COBB Stage 1 CAN Flex Fuel OTS maps and custom calibrations
- Provides a reliable baseline for future performance upgrades
- Designed for straightforward installation with OEM-like integration
TECHNICAL SPECIFICATIONS
- Platform Compatibility: Subaru WRX 2015–2017
- Package Level: Stage 1 with CAN-based Flex Fuel capability
- Fuel Support: Pump gas, E85, and blended ethanol mixtures
- Tuning Requirement: COBB CAN Flex Fuel Stage 1 OTS map or custom CAN-based NexGen tuning
- System Benefits: Improved knock resistance, cleaner combustion, and broader tuning range
- Included Components: Core Flex Fuel hardware required for CAN-based Stage 1 operation
- Application: Ideal entry-level performance upgrade for ethanol-enabled setups
VEHICLE FITMENT
- Subaru WRX 2015–2017
COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.







