Online • 08:00–18:00
ECU / TCU calibration desk

77Tune FileService

Professional tuning files: ECU/TCU calibrations, DPF/EGR off, Stage 1-3, gearbox maps.

Avg. turnaround: 30-90 min KESS, K-TAG, Flex, CMD, AT, foxFlash/KT200
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10K+ files delivered
1500+ supported models
4.9/5 customer rating
What we do

Files built for real workshop flow

We deliver bespoke, safe and consistent calibration files for petrol & diesel ECUs and modern TCUs. Built by experienced tuners with data-driven approach.

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Why our files
Safe, measurable power gains
Focus on reliability & logs
DPF/EGR/AdBlue OFF, Vmax OFF, Pops & Bangs
Support for most tools
Ticket + chat support
How it works

One clean process

1

Register

Create your account

2

Upload ORI

Describe options & hardware

3

Pay

Online & invoice

4

Download MOD

Flash & log results

Testimonials

What workshops say

Below are user quotes from our portal.

OB

Olivia Brooks

Stage 1 for a Golf GTI came back with smooth throttle and precise boost targets.

TR

Thomas Reed

TCU tune sharpened shifts on DQ381 without harshness. Client loved the drivability.

PN

Priya Nair

Needed EGR/AdBlue OFF for a Sprinter. File flashed first try, no DTCs.

NB

Noah Bennett

Clear notes, correct checksums, and data-driven revisions when requested.

Contact

Email: 77tunesupport@gmail.com - Hours: Mon-Fri 9:00-18:00 (CET)

Ready to start? Create your account and submit your first ticket.

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