Delicious Tuning CAN Flex Fuel Kit – Subaru STI (2008–2021)

The Delicious Tuning NextGen CAN Flex Fuel Kit is a fully plug-and-play E85 flex fuel solution for the Subaru STI (2008–2021). Designed with FutureFlex Technology, this system integrates seamlessly with Cobb NexGen OTS maps, Cobb Pro Tunes (Green Speed compliant), EcuTek, and Open Source tuning platforms—while retaining 100% OEM sensor functionality.

Once installed, the system provides accurate ethanol content data directly to the ECU, allowing dynamic adjustments to air/fuel ratios, ignition timing, boost control, cam timing, traction logic, and more. Optional fuel pressure monitoring is also supported and can be viewed through Cobb datalogs or on the Accessport screen.

Installation is straightforward, requiring only a few simple connections at the top of the engine bay—no need to crawl underneath the car. The kit is fully emissions-friendly and keeps all factory emissions components operational.

Key Features

• Compatible with Cobb NexGen OTS and Green Speed ProTunes
• Works with EcuTek and Open Source tuning platforms
• Completely plug-and-play installation
• Real-time ethanol content display (Accessport / ECU)
• Optional fuel pressure monitoring
• FutureFlex Technology for firmware and integration updates
• Retains full OEM emissions system functionality

Included in the Kit

• Cobb NexGen-Compatible Flex Fuel Ethanol Content Analyzer
• Pressure-tested ethanol-compatible nylon fuel lines
• Stainless steel mounting bracket and hardware
• OEM-style ethanol-compatible quick-disconnect fittings
• Plug-and-play electrical harness
• Delicious Tuning Flex Fuel Sensor

Tuning Platform Options

• EcuTek
• Cobb Tuning
• Open Source

Vehicle Compatibility

Subaru WRX STI (2008–2021)