Variant 1
ECU- Catalog engine
- 3000 267HP
- Controller brand
- DELCO
- ECU
- E39
- Stock power
- 267 HP
BUICK · E39 ECU
BUICK REGAL E39 tuning files
The BUICK REGAL on the E39, mapped from stock file to finished result. Stock output across the matched variants spans 186–267 HP. There are 2 distinct variants on file for this combination. Stage 1 and Stage 2 are the safe starting points for this platform. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
Applicable work for the E39 on this vehicle. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
2 distinct variants for the BUICK REGAL on the E39 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 2400 186HP
- Controller brand
- DELCO
- ECU
- E39
- Stock power
- 186 HP
Related vehicles
Other vehicles built on the E39 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the BUICK REGAL on the E39?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the E39 ECU software on this model?
Yes — the BUICK REGAL on the E39 ECU is part of the catalog. Upload your original file and it is matched to the right calibration before any work is done.
How is the file delivered?
Through the TuningBay workflow with operator validation and one safe, sensible result per job. Files we deliver, we stand behind.