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Original ECU files database

Search a curated catalog of original tuning files by brand, model, engine, ECU, hardware, software or calibration. 100% compatible with Alientech, KESS3 and similar professional tools.

197 280Original files
505Vehicle brands
81ECU brands
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About the database

Original ECU files for 197 280 SW & HW versions

On our site you can find original ECU files for our growing catalog of 197 280 different software and hardware versions. If you are looking for an original ECU file — you are on the correct page. Search by brand name, model, engine, software, hardware, calibration number or SW upgrade — request the original ECU file in a couple of clicks.

The catalog helps you understand what modifications were done in your modified file (which you read from the ECU), and is also useful for repair software after bad tuning modification. Most of our original files are 100% compatible for writing back to the ECU with Alientech, KESS3 and similar devices.

Find your file

Have a code? Search it straight away. Otherwise narrow it down by vehicle and ECU — the more you specify, the tighter the results.

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1 Vehicle
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197 280 original files

Comprehensive ECU file database, updated weekly. Covers cars, trucks, tractors, motorbikes and boats.

100% compatible

All files are 100% compatible with Alientech, KESS3 and other professional reading/writing tools.

Fast delivery

Quick buy: €20 by card, no registration — the ready-to-use .bin file comes by e-mail, usually within minutes. Your card is only charged when your file is ready.

Tuning services

Beyond originals: stage 1/2/3, ECO tuning, DPF / EGR / AdBlue removal services on our platform.

Recently added files

Our catalogue grows with every import · 2026-11-06

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Original ECU files: questions and answers

What is an ORI (original) ECU file?

ORI is short for original: the stock, unmodified software read from an engine control unit (ECU), also called a stock file or ECU dump. Tuners use it as the starting point for a tune, to return a vehicle to stock, or to compare a modified read with the original. Our database lists 197 280 original ECU files for 505 vehicle makes and 81 ECU manufacturers.

Are the files modified?

No. Every file is an original (stock) read, delivered exactly as it was read. If you need a modified file, order tuning on our file service.

How do I find the right file?

Read the ECU with your tool and compare the hardware (HW) and software (SW) numbers — and the calibration when several files share one software number. The vehicle name alone is not enough: the identifiers decide.

How do I get the file?

Open the file page and use Quick buy: €20 by card, no registration. We request the file from the original-file database and e-mail it to you — usually within minutes, normally within 24 hours. With an account on our file service fs.auto-remap.com you can also top up your balance and order there.

How fast does the file arrive?

The last 30 files bought with Quick buy arrived in 73 seconds (median, from payment to e-mail). Some files are prepared by the supplier's operator first — normally within 24 hours.

What exactly do I receive?

The original read only, as a ready-to-use .bin file (ordered through a file-service account: a ZIP archive with an .ori file inside). No full backups, EPROMs, SGO, VBF or other formats. Different tools expect different file sizes when writing, so make sure the file suits your device. All sales are final: check HW and SW against your own read before you buy.

My number is not listed. What now?

Then we do not have this file: every original file we have is listed on this site and found by its search, so we cannot get it for you. Search one number at a time — HW, SW or calibration — exactly as it appears in your read.

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