Description
If you're running E85 or plan to install port injection on your S58-powered BMW, this plug-and-play flex fuel kit is essential. The kit provides real-time ethanol content readings via the LED display or the Fuel-It! and JB4 apps on your smartphone or tablet.
Designed for quick installation (approximately 30 minutes), our kits are compatible with JB4, MHD, BM3, and EcuTek that support the 0xEC flex fuel CANbus address format.
Available Flex Fuel Kit Options
1. Complete Kit with CANbus ECA + PnP Harness
- Includes a plug-and-play harness for vehicles running stock ECU flashes, JB4, EcuTek, and MHD
- Note: Manual transmission and BM3 users must purchase the universal harness
2. Complete Kit with CANbus ECA + Universal Harness
- Includes a universal harness that works for all applications, including manual cars and BM3 flex fuel tunes
3. Complete Kit with Fuel-It! Bluetooth ECA
- Includes a Bluetooth ethanol content analyzer for use with the JB4 and Fuel-It! app
- Note: This option does not include CANbus integration
Kit Contents & Features
Complete Kit with BMS CANbus ECA Includes:
- Genuine Continental® ethanol sensor
- BMS CANflex LED ECA (compatible with JB4, MHD, & BM3)
- Stainless steel braided fuel lines with black nylon sheathing for engine bay protection
- Custom fitting for port injection compatibility – simply remove the 1/8" NPT fitting and install an optional port injection line
- Plug-and-play harness (optional)
- BMW/Supra Accessory Harness for S58/B58 motors
- CANflex Android App (Download: Click Here) (iOS version coming soon!)
Complete Kit with Fuel-It! Bluetooth ECA Includes:
- Genuine Continental® ethanol sensor
- Stainless steel braided fuel lines with black nylon sheathing
- Custom fitting for port injection compatibility
- Fuel-It! Bluetooth ethanol analyzer (requires Fuel-It! App for iPhone or Android)
- Includes both Bluetooth App & 5V analog output for JB4 or flash tuning
- App Download:
- iPhone: Click Here
- Android: Click Here
Vehicle Compatibility (Fitment Guide)
BMW M2
• 2023+ G87 M2 (S58)
BMW M3
• 2021+ G80 M3 (S58)
• 2021+ G80 M3 Competition (S58)
BMW M4
• 2021+ G82 M4 (S58)
• 2021+ G82 M4 Competition (S58)
• 2022+ G83 M4 Convertible (S58)
BMW X3M
• 2020+ F97 X3M (S58)
• 2020+ F97 X3M Competition (S58)
BMW X4M
• 2020+ F98 X4M (S58)
• 2020+ F98 X4M Competition (S58)
Note: Manual transmission vehicles are not compatible with the plug-and-play harness option.
Optional Individual Components
We also offer the option to purchase individual components separately. To ensure full functionality, your setup must include:
- Fuel Lines
- Ethanol Sensor
- CANflex Analyzer
Important Notes
- Ethanol Sensors measure fuel purity based on the absence of gasoline. If your fuel is contaminated, ethanol readings may be artificially elevated.
Upgrade your BMW S58-powered vehicle with real-time ethanol monitoring for optimized performance and tuning flexibility!
