SKU: U-EF-PRO2
eFlexFuel eFlexPro 2 E85 Flex Fuel Conversion Kit Mercedes C63 AMG M156
The eFlexFuel eFlexPro 2 E85 Flex Fuel Kit is the best advanced E85 conversion for Mercedes-Benz C63 AMG M156 owners wanting maximum power gains with full custom tuning. This pro-level system features patent-pending virtual load sensor, two analog inputs, wideband support, and 3D fuel mapping via eFlexTuner software for precise ethanol optimization while maintaining all OEM safety features.
Key Features
- Full Custom Tuning: 3D fuel maps and wideband integration for safe, detailed E85 AFR optimization
- Virtual Load Sensor: Patent-pending technology eliminates need for external load sensor tap
- Analog Inputs: Connect two 0-5V sensors for advanced monitoring and control
- eFlexApp & Tuner: Smartphone app for real-time data plus Windows software for in-depth tuning
Specifications
| Specification | Detail |
|---|---|
| Part Number | U-EF-PRO2 |
| Compatibility | Any Ethanol Blend E0-E85 |
| Control | Bluetooth eFlexApp + eFlexTuner Software |
| Inputs | 2x 0-5V Analog + Wideband Support |
| Installation | Under-Hood with Fuel Line Mods |
| Engine | 6.2L M156 V8 |
| Country of Origin | Finland |
| Warranty | 5-Year with Registration |
Product Notes
- Pro series for high-power or modified builds – includes upgraded harness and control unit
Installation Notes
- Estimated time: 2-4 hours (pro) / 4-6 hours (DIY), moderate to advanced difficulty
- Fuel line modification required, detailed instructions and support included
This Part Fits
| Year | Make | Model | Notes |
|---|---|---|---|
| 2008-2014 | Mercedes-Benz | C63 AMG | 6.2L M156 V8 |
Why Choose eFlexFuel?
- Finnish-engineered leader in flex fuel conversion with patented advanced tuning technology
- Premium components and software for maximum power gains and engine protection
- Extended 5-year warranty with registration and free product support
Frequently Asked Questions
- Q: Does this require ECU flash?
A: No, installs parallel to factory system – all OEM safety features remain active. - Q: Can I use my wideband?
A: Yes, direct connection for real-time AFR tuning via eFlexTuner software. - Q: How much power gain?
A: Significant increases on E85 – custom tuning maximizes output safely. - Q: Is it reversible?
A: Yes, completely removable with no permanent changes.
Shipping & Handling
- Method: UPS/FedEx Ground
- Availability: In stock, ships same or next business day
- Packaging: Official eFlexFuel retail box
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