Short answer: Fiat Topolino VCU3000 Tuning at Stefanel Performance is done via Bench Mode without opening the housing — we are the only provider worldwide that can read and write the VCU3000 without destroying the IP certification. VMAX up to 80 km/h, power 8 → 14 HP, plug-and-play available from stock.
→ Order Topolino optimization now · All information on the overview page
Stefanel Performance is the first provider worldwide that can read and write the VCU3000 control units of the Fiat Topolino, Opel Rocks-e and Citroën Ami in Bench Mode — without opening the housing. The waterproof housing remains closed, maintaining IP protection. No other provider can do this.
What does the VCU3000 do?
The VCU3000 (Vehicle Control Unit) is the heart of the Topolino, Rocks-e and Ami. It controls all driving-relevant parameters: power management, torque maps and the factory-set speed limit. With our bench technology, we can safely and reversibly adjust precisely these parameters.
What the optimization brings
| Characteristic | Series | Stage 1 |
|---|---|---|
| Power | 8 HP | 14 HP |
| Torque | 39 Nm | 44 Nm |
| VMAX | 45 km/h | up to 80 km/h |
Why Bench Mode and not opening?
The control unit is located behind the bumper and is constantly exposed to moisture. Other providers drill a hole in the housing — that's exactly where water gets in and destroys the ECU. Our bench protocol was developed as the only one worldwide that reads and writes the VCU3000 on the closed housing.
Optimization process
Method 1 — Send in your own ECU: Send in the control unit, we perform the bench access on the same day and send it back. Install, done.
Method 2 — Plug-and-play: Order a pre-programmed control unit from stock — old out, new in, drive off. No sending in required. This offer is exclusively available from us.
Variants & Prices
| Variant | VMAX | Own ECU | Plug-and-play |
|---|---|---|---|
| VMAX only | up to 53 km/h | 333.33 € | 888.88 € |
| Stage 1 + VMAX | up to 80 km/h | 699.99 € | 999.99 € |
| Stage 1 + VMAX capped | 50/55/60/65 km/h | 699.99 € | 999.99 € |
Order now
→ Order Fiat Topolino
→ Order Opel Rocks-e
→ Order Citroën Ami
→ Overview page: all variants & prices
Phone: +49 (0) 8031 409 2134 · WhatsApp
Note: The software modification is intended for motorsport and export purposes. The customer is responsible for the area of use.
