Subaru WRX Flex Fuel Kit - COBB - CAN Flex Fuel Upgrade (Module/Harness/Bracket/Ethanol Sensor) - 2018-2021. This upgrade enables flex-fuel capability when paired with proper tuning, adding precise ethanol content monitoring to your WRX.

COBB’s CAN-based module is designed to report ethanol percentage reliably in real time. The package includes a harness, mounting bracket, and ethanol sensor for a clean, serviceable install. It’s a straightforward path for enthusiasts who want the flexibility to run E85, pump gas, or any blend with an appropriate calibration.

Features

• Fits 2018-2021 Subaru WRX
• COBB CAN Flex Fuel Module
• Ethanol content sensor included
• Application-specific harness and bracket
• Real-time ethanol percentage reporting
• Supports flex-fuel tunes with proper calibration

Questions about compatibility, parts, or tuning? Call us at 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area offering installation and customization services. If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov