Giulia/Stelvio Performance Logger Dongle by Squadra Tuning

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Giulia/Stelvio Performance Logger Dongle by Squadra Tuning

It took ST quite some time developing this great unique tool. They call it the Performance Logger. It's an OBD device which is able to measure acceleration timing, several drivetrain parameters, a burnout/launch tool, exhaust flap control and front splitter control. In total 24 parameters and functions. All in one.

** It will be controlled by the cruise control buttons on the steering wheel**

What can the Performance Logger do?

The core task of the Performance Logger is to continuously measure acceleration times and to save the best times. In addition, the main parameters about the condition of the engine and drivetrain are shown. The longitudinal and transverse G-forces are displayed and the highest value is also stored.

But that’s not all. For the real drivers, ALL driving assistants can be silenced. We’ve even added a special burn-out or line-lock feature. The fastest acceleration times can be set with the help of the Launch assist.

Finally, there is the option to clear error messages from all control units present.

Special options for the Quadrifoglio versions

For the Quadrifoglio versions, the exhaust valves can be opened. For Giulia Q’s the front splitter can be lowered for a cleaning job.

The operation and communication

Operation is via the menu button, the cruise control buttons on the steering wheel and the “Lane Assist” button. The Performance Logger communicates via the information line on the display between the tachometer and speedometer.

At this moment we have completed the development for the Giulia Q with manual and automatic gearbox. All other versions will follow soon. A table is printed below that lists all functions.


Pushing "RES" locks the front brakes so the rears can turn freely without heating up the rear brakes. Push "RES" again and the brakes are released. No traction control will interfere. No errors while pushing the brake and gas pedal at once.

It's now really easy to do a massive burn-out from a complete stand still. Rock N' Roll baby!!! ????

More Questions?

If you have any questions about the Performance Logger that have not been answered after consulting the user manual below in PDF format, please send us an E-mail.

When ordering, we need the VIN number of the car check the exact version of the car in order to provide the correct Performance Logger.

User manual:

Download link to English user manual for Giulia Q 6MT (PDF)

Download link to English user manual for Giulia Q 8AT (PDF)

Download Link 2.0L User manual for Giulia/Stelvio RWD/Q4 (PDF)


  • VIN needs to be supplied
  • This version is not compatible with 2020 models. 
  • SGW Bypass needed for 2018> Giulia/Stelvio

Specific References

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