MAZDA · EEC-VI ECU · petrol

MAZDA CX-9 EEC-VI tuning files

Tuning file coverage for the MAZDA CX-9 running the EEC-VI ECU. Stock output across the matched variants spans 277–277 HP. 2 distinct variants are catalogued here. It is a petrol platform, tuned for response and clean power delivery. Every file is matched to the exact calibration on your vehicle and signed off by an operator.

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Available solutions

What we can run on the EEC-VI for this petrol — the precise options narrow down by engine and software version.

Stage 1Stage 2Swirl Flaps OffLambda / O2OPF/GPF Off

Engine variants & ECU software

2 distinct variants for the MAZDA CX-9 on the EEC-VI ECU. Reference the engine and controller software when you upload.

Variant 1

ECU
Catalog engine
3700 277HP
Controller brand
VISTEON
ECU
EEC-VI
Stock power
277 HP

Variant 2

ECU
Catalog engine
3700 277HP
Engine code
Duratec 35
Controller brand
VISTEON
ECU
EEC-VI
Stock power
277 HP
ECU HW
C50A-14C204-MC

Related vehicles

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

Questions, answered.

Which tuning solutions are available for the MAZDA CX-9 on the EEC-VI?

Stage 1, Stage 2, Swirl Flaps Off, Lambda / O2, OPF/GPF Off. The exact set depends on the specific engine and software version.

Do you cover the EEC-VI ECU software on this model?

Yes — the MAZDA CX-9 on the EEC-VI 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.

MAZDA CX-9 EEC-VI ECU Tuning Files | TuningBay