Cobb Subaru CAN Flex Fuel Upgrade Kit – WRX (344650-UP)

The COBB Subaru CAN Flex Fuel Upgrade Kit (344650-UP) is designed for 2018–2021 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 system. This upgrade kit replaces the original module setup with updated CAN-based hardware for improved integration and reliability.

The COBB 344650-UP upgrade kit includes the required module, harness, and mounting bracket, allowing a seamless transition to the CAN Flex Fuel platform without needing to replace the entire ethanol sensor system.

Key Features

• Upgrades previous COBB ethanol sensor kits to CAN Flex Fuel

• Improved CAN-based 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

• 2018–2021 Subaru WRX

Notes

• Requires an existing COBB ethanol sensor kit

• Professional tuning required after installation

• Intended for off-road / motorsports use where applicable