Throttle Response + Real Power + Maximum Airflow + Aggressive Exhaust. One App. Total Control. No One Else Offers This.

Unlock the full potential of your FIAT 500 1.4L Turbo with the ultimate Stage 3 Power Pack is the only combination that gives you precise throttle response, genuine power gains, a high flow sealed intake system, and a free flowing dual exit performance exhaust, all controlled safely and seamlessly from a single smartphone app.

What’s Included
- MADNESS GOPedal Plus – Bluetooth throttle response controller  
- MAXBoost ECM – Engine Control Module for real power & torque  
- MAXFlow Intake System – Gloss Red Finish (BMC Carbon Canister + Aluminum Piping)  
- MADNESS Monza Cat Back Exhaust – Dual Exit with Polished Slash-Cut Tips (T304 Stainless Steel)

Together they form a perfectly matched system that transforms how your 500 1.4L Turbo drives — sharper, stronger, freer-breathing, louder, 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.  
The intake feeds the engine cooler, denser air with minimal restriction.  
The Monza exhaust lets the engine exhale freely with a deep, aggressive dual-exit soundtrack and improved flow.  
And the electronic modules are controlled by one free MADNESS app on your phone.

No other company offers this complete, integrated Stage 3 solution for the FIAT 500 1.4L Turbo.

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  
- High flow sealed intake for better airflow, filtration, and engine sound  
- Aggressive dual exit exhaust note with superior flow and no drone  
- Instant mode switching and fine-tuning (5 levels per mode) from your smartphone  
- Safe, non invasive plug-and-play installation that is fully reversible, no permanent ECU changes  
- German made electronics with ECE certification + Italian BMC filtration + USA-made T304 stainless exhaust  
- Warm up protection, auto calibration, and a bypass plug for easy return to stock  

Control everything from one app. Feel (and hear) the difference the moment you drive.

FIAT 500 1.4L Turbo Power Pack Stage 3 is the smartest, safest, and most complete performance upgrade available.  
No one else offers this.

Below you will find all other details on all four modules/components.

MADNESS GOPedal Plus Throttle Response Controller
The GOPedal Plus is one of the most recommended and highly reviewed upgrades for the FIAT 500 1.4L Turbo. 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 500 1.4L Turbo 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 1.4L Turbo the strength to match its newfound responsiveness.

MAXFlow Intake System 
A completely sealed performance intake system designed specifically for the FIAT 500 1.4L Turbo. Developed in partnership between MADNESS Autoworks and BMC Air Filters Italy has the same filtration technology used on many high power exotic cars worldwide.

This is a true bolt in system built around the premium BMC OTA (Oval Trumpet Airbox) filtering system. No inflated dyno claims,  just a solid, properly engineered intake that delivers excellent filtration with minimal restriction and a great induction sound.

What’s Included in the Kit
- BMC Carbon Canister with the OTA Filtering System  
- High performance silicone connectors  
- Aluminum tubing powder coated Gloss Red for a durable, long-lasting finish  
- TIG welded tubing for show quality appearance  
- Crankcase vent filter  
- BMC canister filter manufactured in Italy  
- All necessary mounting hardware  

Key Design Advantages
- Fully sealed system that channels cold air directly to the filter  
- Even piping diameter throughout to reduce turbulence  
- Solid mounting design that eliminates rubbing on the hood or interference with airbag sensors (common issues with other intakes)  
- BMC OTA system uses a patented internal airflow deflector and “Trumpet” design that works in a pressure regime rather than depression, delivering a constant high volume of air with very low pressure drop  
- 5 layer carbon fiber airbox for excellent thermal insulation from engine heat  
- Multi layer pre oiled washable/ regenerable filter element never needs to be replaced, only cleaned and re oiled with the optional BMC Cleaning Kit  

Why It Matters for Stage 3
The MAXFlow Intake feeds the MAXBoost ECM and GOPedal Plus a higher volume of cooler, cleaner air. This supports the power gains, improves throttle response feel even further, and adds a satisfying induction sound under acceleration completing the Stage 3 transformation when paired with the free flowing Monza exhaust.

MADNESS Monza Cat-Back Exhaust – Dual Exit 
The final piece of the Stage 3 puzzle. This complete multi piece cat back system is engineered exclusively for the turbocharged FIAT 500 1.4L MultiAir. It features a 2.5" open flow through design, equal pipe split, mandrel bent T304 stainless steel construction, and precision TIG welding for superior flow, durability, and an aggressive dual-exit soundtrack with no drone.

Key Features
- Multi-piece cat back design for easy installation and perfect fitment  
- T304 Stainless Steel – the highestgrade material that will not oxidize or rust  
- TIG welded and mandrel bent for unrestricted flow and exceptional strength  
- 2.5" open flow through design with smoother bends than stock  
- Equal pipe split for balanced exhaust gas distribution and sound  
- Select Custom Exhaust Tips at checkout
- Adjustable tip extension from the rear diffuser for a customized look  
- Direct bolt-on replacement with no modifications required  
- Lifetime warranty to the original purchaser  

Performance & Sound Benefits
- Maximized exhaust flow for improved performance and turbo response  
- Deep, aggressive, throaty dual exit note that demands attention  
- Lighter weight than stock for better handling  
- No drone on the highway! Refined enough for daily driving yet exciting when you want it  

This system is a direct replacement for the stock exhaust on all FIAT 500 ABARTH models and 2018+ Pop/ Lounge models with the 1.4L Turbo MultiAir engine. (Single-exit non Abarth cars may require a dual exit diffuser, available from us or elsewhere)

The Complete Stage 3 Package
The GOPedal Plus gives you instant, customizable throttle response.  
The MAXBoost ECM delivers the real horsepower and torque to back it up.  
The MAXFlow Intake (Gloss Red) supplies the freer flowing, cooler air.  
The MADNESS Monza Cat Back Exhaust lets the engine breathe out with authority and style.

All electronic controls are managed from one single app, creating a seamless, integrated experience that no other company currently offers for the FIAT 500 1.4L Turbo.

This is Stage 3 done right! Safe, reversible, fully adjustable, and designed by enthusiasts who drive these cars every day.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov