Variant 1
ECU- Catalog engine
- 2500 304HP
- Controller brand
- DELCO
- ECU
- E39
- Stock power
- 304 HP
- ECU SW
- 12644447
- ECU HW
- 12653997
CHEVROLET · E39 ECU
CHEVROLET IMPALA E39 tuning files
Everything we work with on the CHEVROLET IMPALA fitted with the E39. The matched variants sit between 304 and 304 HP from the factory. We start conservative here — Stage 1 and Stage 2 are the dependable baseline. Every file is matched to the exact calibration on your vehicle and signed off by an operator.
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
1 distinct variant for the CHEVROLET IMPALA on the E39 ECU. Reference the engine and controller software when you upload.
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 CHEVROLET IMPALA 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 CHEVROLET IMPALA 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.