CHEVROLET · E78 ECU

CHEVROLET EXPRESS E78 tuning files

Tuning file coverage for the CHEVROLET EXPRESS running the E78 ECU. Across the matched variants stock power runs from 320 to 320 HP. We start conservative here — Stage 1 and Stage 2 are the dependable baseline. Each file is tied to the precise software on your car and checked before it goes out.

Upload your file →All EXPRESS coverage

Available solutions

Solutions that apply to the E78 on this vehicle platform. The exact set depends on the specific engine and software version.

Stage 1 Stage 2

Engine variants & ECU software

2 distinct variants for the CHEVROLET EXPRESS on the E78 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 6000 320HP
Controller brand: DELCO
ECU: E78
Stock power: 320 HP
ECU SW: 12683718
ECU HW: 12647136
SW upgrade: 55494286

Variant 2

ECU

Catalog engine: 6000 320HP
Controller brand: DELCO
ECU: E78
Stock power: 320 HP
ECU SW: 12683718

Related vehicles

Other vehicles built on the E78 controller or the same engine — handy when a platform spans several models and makes.

Questions, answered.

Which tuning solutions are available for the CHEVROLET EXPRESS on the E78?

Stage 1, Stage 2. The exact set depends on the specific engine and software version.

Do you cover the E78 ECU software on this model?

Yes — the CHEVROLET EXPRESS on the E78 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.