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E85 / Flex Fuel Conversion

Recalibrate fuelling/ignition to run high-ethanol E85.

Also known as: e85 · flex fuel · ethanol tune · flex fuel · bioethanol · e85 conversion · ethanol content · flex tune

An E85/flex-fuel calibration adapts injection, ignition and (on flex setups) ethanol-content compensation so the engine runs safely on high-ethanol fuel, which resists knock and supports more timing and boost for extra power. It requires adequate fuelling hardware for the higher flow. A popular power route on turbo petrol engines where E85 is available.

Can Softechpro do E85 / Flex Fuel Conversion?

Softechpro Solutions applies emissions/diagnostic modules (DPF, EGR, AdBlue, DTC off, swirl flaps) automatically and supports Stage power and character features via credits, correcting the checksum across ~1,400 firmwares — on Windows & macOS.

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Emissions-related deletes (DPF/EGR/AdBlue/DTC) and sound/motorsport features are for off-road, motorsport or export use where legal.