
The COBB Subaru CAN Flex Fuel Upgrade Kit (343650-UP) is designed for 2015–2017 Subaru WRX owners who already have a previous-generation COBB ethanol sensor kit and want to upgrade to COBB’s newer Subaru CAN-based Flex Fuel (FF) system. This upgrade improves system integration, reliability, and data communication by transitioning to the CAN platform.
The COBB 343650-UP CAN Flex Fuel upgrade kit includes the required module, wiring harness, and mounting bracket, allowing an easy conversion without the need to replace the entire ethanol sensor system.
Key Features
Upgrades previous COBB ethanol sensor kits to CAN Flex Fuel
CAN-based system for improved integration and reliability
Includes module, wiring harness, and mounting bracket
Designed specifically for Subaru WRX applications
Direct-fit upgrade for existing COBB Flex Fuel users
Vehicle Fitment
2015–2017 Subaru WRX
Notes
Requires an existing COBB ethanol sensor kit
Professional tuning required after installation
Intended for off-road / motorsports use where applicable