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How to use our file service - it's quick and easy!

1. Create a free account

Register or sign in to your free account.

2. Buy tuning credits

Once you have signed in, buy tuning credits securely by PayPal, to upload files.

3. Upload file from your vehicle

With credits in your account, you can upload the original ECU file from your vehicle for modification.

4. Download the modified file

You will see files in your account that are already modified and ready for download.

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About usDeveloped to meet the highest expectations

Our adventure with tuning started more than 10 years ago. On the very beginning that was just a hobby. Rapidly it became a real passion for modifying the files and the WinOLS itself. Another successes created even more difficult goals, and gave motivations for further challenges.

With years of experience and constant development DK Performance is proud to offer you the most professional and friendly file service. Every decision is inspired by our main mission, which is to provide the highest standard of support and tuning solutions to customers.

In this rapidly changing industry, we’ve realized the importance of continually updating our solutions and providing best support to stay unique in the tuning market. We invite you to browse through our services and contact us with any questions.

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BMW 8HP TCU Custom Stage1/2 Files Available!!!
23 January 2020
We’d like to announce we added ZF 8HP TCU file calibration to our offer. We modify all softwares of 8HP45Z/X and 8HP70Z/X ...
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15 January 2020
K-TAG SERVICE MODE (SM): New update dedicated to BOSCH MD1 and MG1!!! Thanks to the new K-Suite update, the latest generation petrol ...
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