Now in stock!

Transform your new FIAT Topolino from a charming city runabout into a properly entertaining GOOOKart!

Stock Topolinos are deliberately held back to just 8 hp and a governed 19 mph (or 25 mph with the optional factory unlock).

Our MAXPower Performance ECU removes that artificial ceiling and delivers a genuine 14 hp and 32 lb ft of torque! This is a 75% power increase and noticeably stronger pull from the first throttle input. Real world top speed typically lands between 37–50 mph, depending on battery temperature, state of charge, and conditions.

This is not a flash or a risky open and reprogram of your original computer. It is a complete, pre tuned replacement ECU. Unplug the factory unit, plug this one in, and you’re done. The swap is fully reversible! Keep your original ECU as a spare or return to stock whenever you want. Your factory hardware stays untouched.

What You’ll Feel

Stronger, more confident acceleration that makes merging and keeping up with traffic far less stressful
A usable top speed range that turns the Topolino from a sidewalk scooter into a real neighborhood cruiser
Smooth, progressive power delivery that stays within safe operating limits for the motor, controller, and battery
Real World Performance

Expectations

Top speed is not a fixed number. Most owners see 37–50 mph. Many cars reach the higher end of that range once the battery is warm and fully charged. Some settle closer to 45 mph. Battery temperature, state of charge, road grade, wind, tire pressure, and vehicle condition all play a role. This is normal and expected on a lightweight electric platform.

The ECU is calibrated to stay within safe component limits. No extreme maps that risk overheating or premature wear. Drive it hard and you’ll use more energy (just like any EV). Drive it normally and range remains very close to stock because you’re no longer constantly riding the limiter.

Frequently Asked Questions

How fast will my Topolino actually go?


Most cars achieve 37–50 mph. Results vary with battery temperature, state of charge, road conditions, weather, wind, tire pressure, and overall vehicle condition. Some cars need a few full 100% charges before they unlock the higher end of the range. A minority settle around 45 mph even under ideal conditions. This is normal variation, not a defect.

How do I get the most out of the upgrade (safely)?

Battery temperature:

Full performance is available once the battery is warm (roughly 59 °F / 15 °C and above). A cold battery will limit power. Drive for 10–15 minutes or start from a warm garage before seeking peak speed.

State of charge:

Higher SOC (especially above 70–80%) gives the system more headroom. Start performance runs near full.

Full charges:

Charging to 100% a few times can help the battery management system recalibrate and unlock higher speeds on some cars.

Tires:

Correct pressure and good tread reduce rolling resistance and improve stability. Under-inflated or worn tires hurt both speed and safety.

Road & weather:

Smooth, dry, relatively flat roads with light wind produce the best numbers. Wet, rough, or steep roads reduce speed and increase risk.

Weight & Aero:

Extra passengers, cargo, open windows, or accessories all cost speed. A clean, lightly loaded car performs best.
Always prioritize safety. Higher speed capability means longer stopping distances. Choose appropriate roads and conditions, and drive within your skill level.

Is the installation difficult?


No. It is a direct plug and play swap. Remove the factory ECU and install the MAXPower unit. Most owners complete it in a short time with basic tools. The process is fully reversible.

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