Variant 1
ECU- Catalog engine
- 1600 8V 101HP
- Controller brand
- SIEMENS
- ECU
- SIMOS 21
- Stock power
- 101 HP
AUDI · SIMOS 21 ECU · petrol
AUDI A4 SIMOS 21 tuning files
The AUDI A4 on the SIMOS 21, mapped from stock file to finished result. Stock output across the matched variants spans 101–101 HP. On this petrol engine the focus is sharper throttle and useful, repeatable gains. Your file is built against the exact ECU software on the car, then operator-verified.
Available solutions
Applicable work for the SIMOS 21 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 AUDI A4 on the SIMOS 21 ECU. Reference the engine and controller software when you upload.
Related vehicles
Other vehicles built on the SIMOS 21 controller or the same engine — handy when a platform spans several models and makes.
Questions, answered.
Which tuning solutions are available for the AUDI A4 on the SIMOS 21?
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 SIMOS 21 ECU software on this model?
Yes — the AUDI A4 on the SIMOS 21 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.