Note: This is an add-on that needs to be run with Unitronic software, not by itself. 

Unitronic is pleased to announce the official launch of UniFLEX, the most robust Flex Fuel package of Performance Software.

*Specific Tuned files are subject to availability for your ECU box code.  If Tuned Files are unavailable for your ECU box code, please submit a Tuned File Request or email [email protected] for more information.

Unitronic FLEX fuel-enabled ECU Performance Software Calibrations feature the implementation of its flex-fuel code and additional control mapping into the factory Bosch engine control modules. When combined with Unitronic’s UniFLEX hardware, Unitronic’s FLEX code receives ethanol content over the CAN-bus. It utilizes this fuel composition data to blend mapping of timing, boost pressure, fueling, and much more. Simplified, this allows for seamless transitions from 0% to 85% ethanol content — or said another way, 100% gasoline to 85% ethanol and anywhere in between, without needing an ECU reflash.

*After purchasing this add-on, Unitronic FLEX-enabled files will be available until the highest purchased ECU Software stage. If, for example, you upgrade from Stage 1 to Stage 3 on the ECU side, you will NOT need to repurchase the FLEX add-on to move up to one of the Stage 3 FLEX-enabled ECU calibrations.*

Available Flex Enabled ECU Files

• Stage 1 91 FLEX - Calibrated for use with 91 octane -> E85
• Stage 1+ 93 FLEX - Calibrated for use with 93 octane -> E85
• Stage 2 91 FLEX - Calibrated for use with 91 octane -> E85
• Stage 2 93 FLEX - Calibrated for use with 93 octane -> E85
• Stage 3 IMS750HS 91 FLEX - Calibrated for use with 91 octane -> E85
• Stage 3 IMS750HS 93 FLEX - Calibrated for use with 93 octane -> E85
• Stage 3 TTE700 91 FLEX - Calibrated for use with 91 octane -> E85
• Stage 3 TTE700 93 FLEX - Calibrated for use with 93 octane -> E85
• Stage 3 TTE777 91 FLEX - Calibrated for use with 91 octane -> E85
• Stage 3 TTE777 93 FLEX - Calibrated for use with 93 octane -> E85

Additional Feature Added - Rolling Anti Lag

By popular request, Unitronic is also proud to announce the addition of Rolling Anti Lag (RAL) into these new FLEX enabled calibrations.

Function Usage: Turn cruise control ON, but not activated. Hold down cruise control stalk downwards (decrease speed, -), then go wide open throttle WOT. You can do this with your left fingers, while both hands are on the steering wheel with ease.

Preconditions for function to be active: 70degC coolant temp minimum threshold, more than 1000rpm engine speed, more than 30kph vehicle speed, and more than 45% throttle position. The function will be activated for 6 seconds maximum and can't be re-activated for 15 seconds refresh time.

This function is very hard on the engine and its components - IT IS NOT DUMMY PROOF. It's easy to melt an engine to the ground with it. Use it wisely and at your own peril.

Additional Feature Added - Wastegate Rattle Fix

By popular demand, Unitronic has implemented its Wastegate Rattle Fix into all Stage 2 and Stage 3 FLEX-enabled ECU calibrations. The wastegate is the mechanism that controls boost pressure, which in the case of the DAZA, is a vacuum-controlled internal wastegate style. In factory trim, without any vacuum being applied to the wastegate actuator, like when driving at partial throttle, the wastegate flap sits in an open position, which is what causes the rattle sound to be audible. With Unitronic's Wastegate Rattle Fix, adjustments have been applied to the wastegate controls to hold the flap shut to eliminate the rattling sound.

Unitronic's E85 Manager allows you to wirelessly view your vehicle’s current ethanol content and integrate this fuel composition data over your vehicle's CAN-BUS, when combined together with the UniFLEX module, an Ethanol Content Sensor and ECU Performance Software calibrated to add Flex Fuel functionality, while using your mobile device's Bluetooth connection.

The included E85 Mix Calculator allows you to calculate current and future gas/ethanol content blends to ensure you can achieve your target ethanol content using your fuel tank size, current fuel level, current ethanol content, target ethanol content, and more!

• View Ethanol Content & Fuel Temperature

• Customize Sensor Calibration Offsets and CAN integrations**

• E85 Mix Calculator

• OTA Updates

**Even if you’re not using UniFLEX with Unitronic’s Flex-enabled ECU Performance Software calibrations, customizable CAN integrations are available for use with other tuner’s ECU calibrations, negating the need to run additional wires to the ECU, through the firewall into the passenger compartment, or the need to keep additional accessories connected to the vehicle’s OBD2 port. We encourage you and your tuner to reach out to learn more about the customizable CAN integrations available with UniFLEX!