Professional ECUTuning File Service
Professional ECU calibration developed and supplied by experienced tuners. Upload your original file, and receive a custom calibration built by people who tune cars on a dyno every day.

Regal Tuning — In-house 4WD dyno cell
Coverage
Supported vehicle types
One file service covering virtually every ECU-equipped vehicle.
Cars
Petrol & diesel, Stage 1–3, pops & bangs, speed limiters
Vans / LCV
Torque & economy calibrations for working vehicles
HGV / Commercial
Fleet economy, power and AdBlue solutions
Agricultural
Tractors & harvesters — power for the working season
Marine
Inboard & outboard engine calibration
Motorcycles
Road & track bike ECU tuning
Compatibility
Supported ECU types
We calibrate files from all major ECU and TCU families, including the latest locked and Tricore-based units.
Calibration Services
Performance. Economy. Gearbox.
Performance Tuning
Stage 1, 2 and 3 calibrations developed on our 4WD dyno — safe, smooth and verified power gains.
Economy Tuning
Fleet-proven economy calibrations reducing fuel consumption on vans, HGVs and agricultural machinery.
Gearbox / TCU Tuning
DSG, ZF and automatic gearbox calibrations — shift speed, torque limiters and launch control.
Solution Files
DPF, EGR, AdBlue, DTC and swirl flap solutions for off-road and motorsport applications.
Process
How the file service works
01
Read the ECU
Use your Master or Slave tool to read the original file via OBD, Bench or Boot.
02
Upload to the portal
Submit the file through the Regal File Portal with your vehicle and job details.
03
We calibrate
An experienced calibrator modifies your file — dyno-developed strategies, not generic maps.
04
Download & flash
Receive your tuned file, flash it back and log the results. Support if you need it.
File uploads are handled by the existing Regal Tuning portal
