New and Improved! 
New Hardware and Software!

Throttle Response + Real Power. One App. Total Control. No One Else Offers This!

Unlock the full potential of your turbocharged FIAT 500 with the ultimate Stage 1 Power Pack. This is the only combination that gives you precise throttle response and genuine power gains, all controlled safely and seamlessly from a single smartphone app.

What’s Included
MADNESS GOPedal Plus – Bluetooth throttle response controller  
MADNESS MAXBoost ECM– Engine Control Module for real power & torque  

Together they form a perfectly matched system that transforms how your FIAT 500 drives. Sharper, stronger, and fully customizable.

Why This Combo Is Special
One module sharpens how your right foot talks to the engine.  
The other delivers the actual extra power and torque.  
And both are controlled by one free MADNESS app on your phone or directly on the modules.

No other company offers this complete, integrated solution for the FIAT 500.

What You Get
- Dramatically improved throttle response with multiple driving modes (Traffic, Eco, Street, Race + Protect & Valet)  
- Up to +30% more power and torque with optimized boost and fueling  
- Instant mode switching and fine-tuning (5 levels per mode) from your smartphone  
- Safe, non invasive plug and play installation. Fully reversible, no permanent ECU changes  
- German made hardware with ECE certification for maximum safety and reliability  
- Warm up protection, auto calibration, and a bypass plug for easy return to stock  

Install both modules in under an hour. Control everything from one app. Feel the difference the moment you drive.

FIAT 500 Power Pack Stage 1 is the smartest, safest, and most complete performance upgrade available!



Want to know more details? 
Below you will find all other details on both modules.

MADNESS GOPedal Plus Throttle Response Controller

The GOPedal Plus is one of the most recommended and highly reviewed upgrades for the FIAT 500. It safely modifies the accelerator pedal signal to eliminate the lag built into modern drive-by-wire systems, delivering faster, more precise throttle response the moment you put your foot down.

Key Benefits
- Night and day improvement in throttle response for passing, merging, and spirited driving  
- Multiple driving modes so you can match the car’s feel to any situation  
- Full control from either the included wireless remote or the free smartphone app  

Driving Modes
- Traffic Mode – Softens initial response for relaxed stop-and-go driving  
- Eco Mode – More conservative throttle map to help maximize fuel economy  
- Street Mode – Sportier feel with reduced lag and smoother acceleration  
- Race Mode – Maximum response for the most aggressive driving  
- Protect Mode – Completely deactivates the throttle pedal as an anti-theft feature  
- Valet Mode – Limits performance when someone else is driving your car  

Each mode offers five levels of fine tuning so you can dial in exactly the response you want.

Premium Features
- Wireless remote control + Bluetooth smartphone app control  
- Auto-calibration for seamless operation  
- Warm-Up Timer to protect the powertrain until the engine is up to temperature  
- Made in Germany to the highest standards and certified by the German Federal Motor Transport Authority (ECE regulations)  
- Fully reversible with no permanent changes to the vehicle’s software or hardware  
- Does not void factory warranty  
- Easy DIY installation in minutes with basic tools  
- 30 day money back guarantee and full 2 year warranty  

Thousands of FIAT owners worldwide already enjoy the GOPedal Plus. Once you experience the difference, you’ll never want to go back to the stock throttle response.

MAXBoost ECM by MADNESS Autoworks – Engine Control Module

The MAXBoost ECM is the power half of the Power Pack. This precision-engineered module unlocks significant gains in horsepower and torque while improving overall drivability, all while remaining completely safe and reversible.

Performance Gains
- Up to +30% more power and torque  
- Approximately +25 PS and +58 Nm of torque (results vary by vehicle condition and supporting modifications)  
- Optimized fueling and boost for stronger acceleration across the rev range  
- Potential for improved efficiency in Eco mode  

Driving Modes
- Sport Mode – Balanced everyday performance with a sporty edge  
- Race Mode – Aggressive, high-performance setup for maximum acceleration and driving excitement  
- ECO Mode – Focused on efficiency and reduced fuel consumption  

Each mode includes five levels of fine-tuning so you can customize the power delivery exactly how you like it.

Premium Features
- Full control via the free MADNESS PowerPack smartphone app (same app that controls the GOPedal Plus)  
- Plug and play installation with original connectors with no cutting or splicing  
- Includes a bypass plug so you can instantly return the car to stock for service visits or diagnostics  
- Manufactured in Germany with state of the art electronics  
- Certified by the German Federal Motor Transport Authority (ECE & CE)  
- Dyno developed and real world road tested for reliable, repeatable results  
- 30 day money-back guarantee and full 2 year warranty  

The MAXBoost doesn’t just add power, it transforms the entire character of the engine, giving your FIAT 500 the strength to match its newfound responsiveness.

The Perfect Partnership
The GOPedal Plus gives you instant, customizable throttle response.  
The MAXBoost ECM delivers the real horsepower and torque to back it up.  
Both are controlled from one single app, creating a seamless, integrated experience that no other company currently offers for the FIAT 500.

This is Stage 1 done right! Safe, reversible, fully adjustable, and designed by enthusiasts who drive these cars every day.

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