Variant 1
ECU- Catalog engine
- 1800 8V FLEX 114HP
- Controller brand
- MAGNETI MARELLI
- ECU
- IAW 4SF.GB1
- Stock power
- 114 HP
FIAT · IAW 4SF.GB1 ECU · petrol
FIAT SIENA IAW 4SF.GB1 tuning files
FIAT SIENA on the IAW 4SF.GB1: matched, calibrated and delivered with care. Stock output across the matched variants spans 114–114 HP. It is a petrol platform, tuned for response and clean power delivery. Each file is tied to the precise software on your car and checked before it goes out.
Available solutions
Applicable work for the IAW 4SF.GB1 on this petrol. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
1 distinct variant for the FIAT SIENA on the IAW 4SF.GB1 ECU. Reference the engine and controller software when you upload.
Related vehicles
Other vehicles built on the IAW 4SF.GB1 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the FIAT SIENA on the IAW 4SF.GB1?
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 IAW 4SF.GB1 ECU software on this model?
Yes — the FIAT SIENA on the IAW 4SF.GB1 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.