Is it a canned file? What it means and how to tell

"Is it a canned file?" It is one of the questions we hear most, and rightly so. Anyone looking at a remap wants to know exactly what is going into their car.

What a canned file is

A canned file is a ready-made file, built once for one type of engine and loaded unchanged into many cars. It takes no account of the specific car in front of it.

Why it matters

Two cars that are identical on paper are rarely identical in practice. Mileage, engine condition, software version, fuel and any modifications, such as a different exhaust or air filter, all vary. A ready-made file sees none of that. Without a measurement, you know neither what you gained nor whether the engine runs properly on the new settings.

Same car does not mean same software

Even a ready-made file cannot go into every identical car with the same ECU, not even from the same year. Two cars built on the same day can have different software versions in their ECU, because one went to the dealer for an update and the other did not.

In practice, if the wrong file is written to one of them, the ECU locks and the engine will not start.

That is why every calibration is made on the specific software version of the car you bring us for programming.

How we work

1. We measure first: the car goes on the dyno, so we can see its real condition.
2. We read the original software and keep it on file, so it can be restored.
3. We write the file for that specific car.
4. The changes are measured on the dyno and, depending on the results, we make the right corrections to the calibration to reach the target.
5. We measure again, and you leave with the before and after graph.

What to ask, wherever you go

• Will the car be measured before and after?
• Will I get the graph?
• Do you keep the factory file?
• Is the file written for my car?
• What happens if I want to go back to factory?

If the answers are clear, you are in good hands.