COBB Previous Ethanol Sensor Kit to CAN Flex Fuel Upgrade With Fuel Pressure Kit (SUB004WCAN2FFUP-P-FP) | Subaru WRX 2018-2021

The COBB Previous Ethanol Sensor Kit to CAN Flex Fuel Upgrade With Fuel Pressure Kit (SUB004WCAN2FFUP-P-FP) provides 2018–2021 Subaru WRX owners with a comprehensive solution for transitioning from older, hardwired ethanol sensor systems to COBB’s modern CAN-based Flex Fuel architecture. This upgrade enhances data accuracy, expands tuning flexibility, and incorporates a Fuel Pressure Kit for improved safety and more reliable performance when running ethanol-blended fuels.

KEY FEATURES

• Converts legacy hardwired ethanol sensor kits to COBB’s CAN-based Flex Fuel system
• Includes Fuel Pressure Kit for real-time monitoring and safer high-performance operation
• Supports E85 and blended ethanol mixtures with enhanced system stability
• Improves knock resistance, combustion consistency, and overall reliability
• Provides cleaner system integration compared to older wiring-based Flex Fuel systems
• Compatible with COBB CAN Flex Fuel OTS maps and custom CAN-enabled tuning
• Engineered for precise, long-lasting installation with OEM-like fitment

TECHNICAL SPECIFICATIONS

• Platform Compatibility: Subaru WRX 2018–2021
• Upgrade Type: Transition from previous-generation Flex Fuel kit to CAN-enabled Flex Fuel system
• Fuel Support: Pump gas, E85, and ethanol-blended mixtures
• Sensors Included: CAN Flex Fuel sensor integration and Fuel Pressure sensor module
• Tuning Requirement: COBB CAN Flex Fuel OTS calibration or custom CAN-enabled tune
• Performance Benefits: Safer ethanol operation, higher data resolution, improved tuning flexibility
• Application: Ideal for WRX owners upgrading older Flex Fuel installations to modern CAN-based hardware

VEHICLE FITMENT

• Subaru WRX 2018–2021

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.