Read the original.
Start with a supported read and keep an untouched copy of the original ECU file.
K-TunesCAR REMAPPINGFile portal 
K-Tunes by Ernests · File service & videos
Got an original ECU read? Tell me about the car, the ECU and what you need. I handle the file side of K-Tunes and share the cars, tools and process on my channels.
WHAT K-TUNES IS ABOUT
K-Tunes is where I bring two things together: ECU tuning files for real jobs, and the cars and tools I show on my channels. If you need a file, tell me what you've read and what you're trying to achieve. If you want to see the process behind it, follow my journey.
See my journeyTell me about the car, the ECU and the result you're after. I'll show you what a file request needs.
EXPLORE TUNING FILESSEE MY JOURNEYFollow the cars, the tools and the process I share on my channels.
WATCH & FOLLOWA FEW EXAMPLES
I check the exact vehicle, ECU and software before quoting a file. These figures show the kind of change the right calibration can make.
| Vehicle | Stock power | Estimate | Gain | Stock torque | Est. torque |
|---|---|---|---|---|---|
| BMW 3 Series F3x LCI (2015–2019)320d 190 | 190 hp | 220 hp | +30 hp | 400 Nm | 440 Nm |
| BMW 3 Series G2x (2019+)330i 258 | 258 hp | 310 hp | +52 hp | 400 Nm | 470 Nm |
| Volkswagen Golf VII Mk1 (2012–2017)2.0 TDI CR 150 | 150 hp | 195 hp | +45 hp | 320 Nm | 430 Nm |
| Audi A4 B9 Mk1 (2015–2019)2.0 TDI 150 | 150 hp | 195 hp | +45 hp | 320 Nm | 430 Nm |
| Mercedes-Benz C-Class W205 (2018–2021)220d 194 | 194 hp | 215 hp | +21 hp | 400 Nm | 480 Nm |
Indicative figures from the TuningBay gains catalogue. Results depend on the vehicle, fuel, hardware and condition; no figure is guaranteed.
FROM ORIGINAL READ TO FINISHED FILE
Start with a supported read and keep an untouched copy of the original ECU file.
The vehicle, ECU, tool and what you want from the file all belong with the request.
My file portal keeps the original, your notes and the reply together.
Follow the correct procedure for the vehicle, then check the result and keep your backup.

I'M ERNESTS.
I'm Ernests, the person behind K-Tunes. I help with ECU tuning file requests, and I show the cars, ECU reads and tools that are part of my work. Every car teaches me something about the process, so I take you along in my videos. Need a file? Tell me about the job. Curious how it all fits together? Come watch.
Watch my channelCOME FIND ME ONLINE
QUESTIONS I GET
Here's what I'd want to know before getting into a file job.
Yes. Open my file portal to start a job. Keep your original read and the car, ECU and tool details together with your request.
Keep the original ECU read, car and ECU details, the tool and method you used, any hardware changes and what you want from the file. I'll need that context with the job.
No. That's where my file service can help. Reading the ECU, preparing a calibration and writing it back are different parts of the job. Tell me what you need from the file, and watch my channels if you want to see how the process fits together.
Yes. You can watch my reads and tool videos on YouTube, catch shorter clips on TikTok and Instagram, and talk with the community on Discord. Start with the basics and always check the procedure for the exact vehicle and tool you use.
Right now I'm sharing my work online. I haven't announced an in-person workshop service. If that changes, I'll put the details on my channels.
GOT A FILE JOB IN MIND?