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ABG Performance
Tuning Files

WinOLS ECU File Editing

WinOLS is the professional software our team uses to read, identify and edit the maps inside your engine control unit. Every change is made on your original file — never a generic, one-size-fits-all map.

From injection and boost to torque limiters and drivability, we adjust the right tables for a result that feels strong, smooth and safe in real driving.

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stage1_boost.ols
Boost Pressure Limiter · 14×9Low High
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RPM →
What WinOLS lets us do

Precise edits, on your original file

WinOLS gives us full control over the calibration inside the ECU — so the tune is built around your exact vehicle, hardware and goal.

Map Identification

We locate the injection, boost, ignition, torque and limiter maps inside the original file.

2D & 3D Map Editing

Adjust fueling, boost and torque surfaces precisely in table or 3D surface view.

Checksum Correction

Checksums are recalculated automatically so the edited file stays valid and flashable.

Damos & A2L Support

Labeled map data means faster, more accurate edits and fewer guesses.

Original File Reference

Verified stock files let us compare, restore and validate every change.

Difference Comparison

Side-by-side comparison highlights exactly what changed between stock and tuned.

How it works

From original file to tuned file

A clear, controlled process — every file is read, edited and verified before it goes back to your vehicle.

  1. 01
    Read the original ECUThe factory file is read from your vehicle and stored as the untouched reference.
  2. 02
    Identify & label the mapsUsing Damos/A2L data, the relevant maps are located and labeled in WinOLS.
  3. 03
    Edit the calibrationFueling, boost, ignition and limiters are adjusted for your stage and hardware.
  4. 04
    Correct checksums & verifyChecksums are recalculated and the file is checked against the original.
  5. 05
    Deliver the tuned fileThe finished file is prepared for writing back to your vehicle.
Calibration areas

What we can adjust

Injection quantity & timing
Boost pressure & turbo control
Ignition & fuel maps (petrol)
Torque limiters & monitoring
Throttle & pedal response
Rev & speed limiters

Emission-related changes such as DPF, EGR, AdBlue or OPF are only carried out where they are legally permitted for your vehicle and use. If you are unsure what is allowed, contact our team before requesting a file.

Get Started

Need a professionally edited ECU file?

Send us your vehicle and ECU details, and our team prepares a WinOLS-edited file built around your setup.

Make a Request Contact our team