BUICK · E78 ECU

BUICK EXCELLE E78 tuning files

Here is what the catalog holds for the BUICK EXCELLE on the E78. The matched variants sit between 120 and 140 HP from the factory. 2 distinct variants are catalogued here. 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.

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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 BUICK EXCELLE on the E78 ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 1400 140HP
Controller brand: DELCO
ECU: E78
Stock power: 140 HP

Variant 2

ECU

Catalog engine: 1400 16V Turbo DCVCP 120HP
Controller brand: DELCO
ECU: E78
Stock power: 120 HP

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 BUICK EXCELLE 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 BUICK EXCELLE 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.