We will be closed from December 24 to January 4 inclusive. Happy New Year's Eve to you all


Our file service is currently closed. Opening hours : From Tuesday to Saturday from 9:00 am to 6:00pm CET. Closed on Sunday and Monday.

ECU file tuning 24/7 all over the world

Send us your original software and we will optimize it according to your wishes.

All the available tuning files have been developed and tested on one of our dyno. They are both reliable and powerful. We offer support for all software from Tuesday to Saturday from 9:00 am to 6:00pm CET.

The best of ECU tuning in a matter of seconds

Our automatic file service is a unique tuning process developed by OLSx. Between a manual file service and EVC server, it tunes your file in record time based on the options you selected.

To achieve this, our innovative system applies the modifications dictated beforehand by our engineers for each type of reprogramming and thus cancels the risk of human error.

You need a Stage 1 tuning with or without Vmax suppression ? All combinations are possible.

Thanks to our file service, you do not wait anymore, it is instantaneous. In addition, we always provide after-sales support on the software provided if needed.

Stay updated

Our automatic file service is in continuous development, sign up to receive updates.

12 years experience

For more than 12 years, we develop our own engine optimisation softwares. With your trust and that of the rest of our clients, more than 12.000 tuning files are send from our side each year.

Tested and approved on dyno

Located in Luxembourg, our development center is equipped with two dyno rooms and all official diagnostic tools. This allows our engineer to develop powerful and reliable tuning files in the best conditions.

Available 24/7

Our file service is available 24/7 and delivers your file in less than 20 seconds. Aiming for excellence in customer service is a core priority for our team. Therefore, we offer support for each file from Tuesday to Saturday from from 9:00 am to 6:00pm CET.

Available stages and options

Stage 1

The stage 1 is a tuning of the engine management without the addition of mechanical parts. Stage 1 is both reliable and efficient while delivering first-class performance.

Stage 1+

Stage 1+ is an improved version of the Stage 1


This option removes the catalyst light indicator from the dashboard.


This option electronically removes only the DPF


This option blocks the EGR valve so that there is no more exhaust gas recirculation

Exhaust flaps control

This option maintains the exhaust valves open in a specific driving mode.

DSG Tuning

The DSG gearbox (dual clutch) allows quick gearshifting but does not deliver its full potential so far. With the reprogramming we are working on several parameters: Decreased gear change time, Increasing maximum engine speed (rpm/min), Increasing the maximum torque, Removing kick-down, Improving responsiveness.

Launch control

Option that maintains a certain engine speed when the clutch pedal is pressed. This allows starting at the best engine speeds.

Pops & Bang

Pop and bang is the result of an ignition delay which creates an exhaust detonation when the throttle pedal is released.


This options delect Default Trouble Code (DTC) of the engine.

Remap on sport button

This option let the remap activated only in sport mode.

Power on driving mode

On some vehicles it is possible to simulate the original power when the vehicle is in normal mode or related to fuel economy. Once you go into a sport mode or similar, the vehicle is then tuned.

ADblue OFF

This option deactivates the AdBlue.

Start & Stop OFF

Sometimes the start and stop intervenes intrusively. While we want to restart, the latency of the system is felt and it quickly becomes embarrassing. This option simply removes this feature.

Vmax OFF

This is an increase of the maximum speed limit or its suppression.


  • 1
    OLSx-reading process
    Register and buy credits

    Before sending your file you need to register.
    You can buy several credits simultaneously in order to benefit from an advantageous price.

  • 2
    OLSx-reading process
    Original file reading

    With the reading tool of your choice, you must first extract the original file from the car.

  • 3
    OLSx-reading process
    Orignal file upload (Drag and Drop)

    Simply drag your original file into the window and complete the information carefully.

  • 4
    OLSx-reading process
    File review by our file service

    Our file system will automatically detect the corresponding optimized file if it is available in our database.

  • Is your car supported by our automatic file service?

    Our file service automatically delivers your optimized software in just 20 seconds

    Our innovative solution instantly detects the program corresponding to your request on our server. Via our file service, map packs compatible with your EVC software are also available.

    Not yet

    Our engineer takes care of your request within 20 to 60 minutes

    Our individual service completes the automatic file service offer on a daily basis. This gives you the guarantee of a personalized work on the vehicle software. As soon as the file is ready, you are notified in order to download it.

  • 6
    OLSx-reading process
    Payment and file download

    You have the option of paying the program with credits or directly via online payment. The use of credits allows you to benefit from a cheaper unit price.

  • 7
    OLSx-reading process
    Optimized file writing in the car

    All you have to do is to install the optimized software in your customer's vehicle and perform a road test.