Variant 1
ECU- Catalog engine
- 5300 324HP
- Controller brand
- DELCO
- ECU
- E38
- Stock power
- 324 HP
- ECU SW
- 12653249
- SW upgrade
- 12640920
GMC · E38 ECU
GMC SAVANA E38 tuning files
GMC SAVANA on the E38: matched, calibrated and delivered with care. Stock output across the matched variants spans 324–324 HP. There are 3 distinct variants on file for this combination. Stage 1 and Stage 2 are the safe starting points for this platform. We match the right calibration to your exact software and validate it before delivery.
Available solutions
Solutions that apply to the E38 on this vehicle platform. The exact set depends on the specific engine and software version.
Engine variants & ECU software
3 distinct variants for the GMC SAVANA on the E38 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 5300 324HP
- Controller brand
- DELCO
- ECU
- E38
- Stock power
- 324 HP
- ECU SW
- 12653674
- SW upgrade
- 12649811
Variant 3
ECU- Catalog engine
- 5300 324HP
- Controller brand
- DELCO
- ECU
- E38
- Stock power
- 324 HP
- ECU SW
- 12647991
- SW upgrade
- 12640812
Related vehicles
Other vehicles built on the E38 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the GMC SAVANA on the E38?
Stage 1, Stage 2. The exact set depends on the specific engine and software version.
Do you cover the E38 ECU software on this model?
Yes — the GMC SAVANA on the E38 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.