RENAULT · RENIX ECU

RENAULT 21 RENIX tuning files

Everything we work with on the RENAULT 21 fitted with the RENIX. Stock output across the matched variants spans 90–175 HP. There are 2 distinct variants on file for this combination. We start conservative here — Stage 1 and Stage 2 are the dependable baseline. Your file is built against the exact ECU software on the car, then operator-verified.

Upload your file →All 21 coverage Custom ECU tuning file service

Available solutions

Applicable work for the RENIX on this vehicle. The available set firms up once the exact engine and software are known.

Stage 1 Stage 2

Engine variants & ECU software

2 distinct variants for the RENAULT 21 on the RENIX ECU. Reference the engine and controller software when you upload.

Variant 1

ECU

Catalog engine: 2000 175HP
Controller brand: SIEMENS
ECU: RENIX
Stock power: 175 HP

Variant 2

ECU

Catalog engine: 1700 8V 90HP
Controller brand: SIEMENS
ECU: RENIX
Stock power: 90 HP

Related vehicles

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

Questions, answered.

Which tuning solutions are available for the RENAULT 21 on the RENIX?

Stage 1, Stage 2. The exact set depends on the specific engine and software version.

Do you cover the RENIX ECU software on this model?

Yes — the RENAULT 21 on the RENIX 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.