Variant 1
ECU- Catalog engine
- 2000 16v 301HP
- Engine code
- CJXC
- Controller brand
- SIEMENS
- ECU
- SIMOS12.1
- Stock power
- 301 HP
- ECU SW
- 10274180AA
- ECU HW
- CASC1CC5.DAT
- Calibration
- 8V0906259_0006
AUDI · SIMOS12.1 ECU · petrol
AUDI S3 SIMOS12.1 tuning files
The AUDI S3 on the SIMOS12.1, mapped from stock file to finished result. Across the matched variants stock power runs from 301 to 301 HP. It is a petrol platform, tuned for response and clean power delivery. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
Applicable work for the SIMOS12.1 on this petrol. The available set firms up once the exact engine and software are known.
Engine variants & ECU software
3 distinct variants for the AUDI S3 on the SIMOS12.1 ECU. Reference the engine and controller software when you upload.
Variant 2
ECU- Catalog engine
- 2000 301HP
- Controller brand
- SIEMENS
- ECU
- SIMOS12.1
- Stock power
- 301 HP
- SW upgrade
- 8V0906259_0006
- Calibration
- 8V0906259_0006
Variant 3
ECU- Catalog engine
- 2000 301HP
- Engine code
- CJXC
- Controller brand
- SIEMENS
- ECU
- SIMOS12.1
- Stock power
- 301 HP
- ECU SW
- 10263575AA
- ECU HW
- CASC1CB6.DAT
- Calibration
- 8V0906259_0004
Related vehicles
Other vehicles built on the SIMOS12.1 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the AUDI S3 on the SIMOS12.1?
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 SIMOS12.1 ECU software on this model?
Yes — the AUDI S3 on the SIMOS12.1 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.