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FIAT 500 ABARTH (ECU) Engine Control Module by Magneti Marelli (Pre-2015 with Radio Remote Controller)

FIAT 500 ABARTH (ECU) Engine Control Module by Magneti Marelli (Pre-2015 with Radio Remote Controller)
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Price: $799.99
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Take your FIAT 500 ABARTH to the next level with this Engine Module by Magneti Marelli.

This is a Plug and Play Unit that has been designed to improve the performance of your FIAT 500 ABARTH. It is designed with OEM Connectors and works with the electronics of your ABARTH to increase power and engine response. The prototype of this unit was installed in the FIAT 500 ABARTH Venom Concept Car and received rave reviews. We have this module installed in our own ABARTH and can verify that it fits and works as promised.

The difference in performance is significant!


You can read more about the Magneti Marelli Engine Control Module here:

The manufacturer states that the unit typically ads between 25-40 Horsepower to the ABARTH . 


Here are the details of the controller:

The unit is activated only after the engine has reached operating temperature.   

The unit deactivates in case of abnormal and prolonged elevated engine temperatures and overheating.   

Gold Plated Pins are used in electrical connectors for zero current leakage.   

All the connectors are like the Original Equipment connectors.   

Limits the increase of power to be within the limits of mechanical gearbox and clutch of the car.   

Receives data from the original ECU and sensors and reinterprets them by changing boost pressure, fuel flow, injection timing and ignition advance.

The module will be preloaded with the - Race/Venom Tune as a default.

If you have the remote control you will be able to switch from Race (button #2) to Performance (button #1) down to stock (button #0).

Please make sure you enable the Sport Button for maximum performance gains.


Please make sure the car is in stationary position when you switch between settings.

This listing is for the module without the remote controller. You can add the remote controller later, but you will need to send us back your module and pay an additional $150 (for the remote, reprograming and shipping). If you are thinking about whether or not you should get the module with the remote we would recommend the complete system. We have it on our own ABARTH cars and recommend the systems with the remote.


Optional add on:

Once you order this Engine Module you have the option of adding on a Magneti Marelli Radio Control Module for this system.

Details below:

The Magneti Marelli Radio Control Module will allow modifying the tune of your car while sitting inside.

You can select to turn off the module and have the car operate at the stock factory setting. You can select to up the power of the car to a more aggressive tune that will provide your ABARTH with an increase in power and torque or you can choose to select a third level which the most aggressive setting maximizing the power upgrade to max (watch out!).

By adding on the Radio Control Module you will have full control of the performance of your ABARTH at your fingertips. This is also a plug and play unit that is designed to integrate seamlessly with your Magneti Marelli Engine Control Module. The module is available at an additional cost. We have this optional remote controller with the Magneti Marelli Engine Control Module on our own ABARTH and can truly tell the difference. The difference is night and day and in our opinion the optional remote is a great option.

Please check out our other listings for the Engine Module with the Radio Controller


Frequently asked questions regarding Magneti Marelli Power Boost Controller:

Q. How do they work?

A. There are two main methods of tuning modern engines, one is by chip tuning or re-mapping, this involves using a special interface to read out the program from the cars computer or ECU and then writing in a new program to increase performance.

The second method is to use an external plug in Tuning Box (Engine Module) or as some people refer to them 'Piggyback ECU', these units connect into the existing wiring of the vehicle generally using original manufacturers connectors, a control unit (Tuning Box) is then attached which can over-ride the signals coming from the engines sensors to the cars ECU and alter them to allow the injectors or common rail to inject more fuel at certain times and increase turbo pressure to keep the air/fuel ratio correct.

These units are generally connected to either the fuel injectors or to the pressure sensor on the injection systems common rail (the common rail is a thin cylinder close to the injectors which holds the fuel at high pressure before feeding it to the injectors) and also to the pressure sensor of the turbo charger allowing us to increase turbo pressure to match the increased fuel.

Q. Some ECU Modules are encased in Metal Boxes, some are encased in Plastic Boxes. Which is better?

The Magneti Marelli ECU Modules are encased in Plastic Boxes. This is superior to the metal boxes available on some other modules. The Magneti Marelli Modules have a specifically made, molded boxes that are fireproof and do a superior job in protecting the motherboard from moisture and heat. As you know it gets hot inside the engine bay of the 500. These boxes provide superior insulation to other handmade metal boxes.

Q. Whats the difference between analogue and digital tuning units?

A. Quite simply the analogue unit has no electronics inside and no processor, its generally made of resistors inside a plastic box with a screw to increase or decrease fuelling, these are very cheap to make and are usually found on auction sites, the risk with these units is that they have no set program to deliver the increased fuel at specific points , instead they just increase fuelling continuously even at idle which can cause the engine to run erratically and over time will likely cause damage and usually create a lot of smoke from the exhaust.

The analogue units generally will not work on quite a large number of modern cars due to the latest intelligent computers running the engine which can detect them and will cause the engine warning lamp to come on and the engine to go into safe mode (greatly reduced power and limited revs).

A digital tuning unit has a microprocessor controlled computer board inside which is programmed with specific parameters for each individual vehicle to obtain the maximum performance without reaching the safety cut off limits set by the manufacturer, each unit is set up on a dynamometer so the results can be accurately measured , the digital unit will also not function until the accelerator pedal is pressed beyond a certain point at which you are demanding extra power , this means that no extra fuel is being added at idle and the extra fuel being injected is reduced again when the engine approaches maximum revs to avoid damage , put simply the digital unit is carefully designed using the latest technology to achieve the maximum performance safely from each individual make and model of vehicle, also the parameters in the digital tuning kit are hard programmed into the control chip so they can never alter over time or temperature.

Q. What kind of increase in performance can I expect from the Magneti Magnetti Engine Module?

A. Magneti Marelli is a FIAT Company and works hand in hand with the engineers of FIAT. By doing so they are able to design and manufacture what is considered by most to be the best tuning module available on the market. The module is designed to work seamlessly with the FIAT Electronic Management System. This unit is fully programmable and can offer you a variety of different tunes to get just the right amount of performance and fuel economy. This unit was featured in the ABARTH Venom Concept Car and was tuned to generate approximately 200 HP!

The unit will come preprogramed with the 0-stock, 45%-Performance and 58%-Race/Venom Tune. If you are using the Radio Remote Control you will be able to switch back and forth between the settings as you like. If you are getting the unit without the remote control your unit will be set to the 58%-Race/Venom Tune.

Q. Why should I buy the Magneti Marelli Engine Module over others that are on the market?

A. There are many good tuning kits available from various companies, but also many very bad ones which may cause serious damage to your engine leaving you out of pocket for hundreds or even thousands of dollars! The Magneti Marelli Engine Module is manufactured by MM which is a FIAT Company. This is considered to be one of the best, if not the best tuning modules available for the FIAT 500 ABARTH.

Q. Could the unit damage my engine?

A. It should not (per MM). Magneti Marelli units are specifically designed for the FIAT 500 ABARTH. This module is not a generic solution that has been modified to work with the ABARTH. It has been designed from scratch specifically for the North American Version of the FIAT 500 ABARTH by Magneti Marelli which is an official FIAT Company. If you use the module as designed it should not have any negative effect on the power train of the vehicle.

You should still take care of your vehicle and drive properly. Abusing the vehicle and driving the vehicle beyond its capabilities can cause damage, so please use caution.

Q. Is the unit difficult to fit if I wanted to fit it myself?

A. Generally not, most can be fitted by a trained technician in about 1-2 hours (including programing); we offer installation services for this unit at our facility and can also give you assistance over the phone if needed. Please check our DIY section for detailed instructions on how to install this module.

Q. Is it legal to increase the performance of my engine?

A. As with most performance enhancing products regulations vary from state to state. We offer this unit under the "For Off Road and Track Use Only" and encourage you to check with your local state laws to see if this unit is legal for on road use in your country/state. 

Q. Which company offers the best module?

A. It’s a personal choice really. Some choose to save a little money and go with an aftermarket company. Some choose to invest a little more and choose the one manufactured by Magneti Marelli knowing that they are getting a module that has been specifically designed by a company that is a part of the FIAT Group and has larger resources available at its disposal which allows for what some believe a better result. We offer more than one option and let you, the driver decide which is the right one for you.




By purchasing this unit you understand that it is being sold under the "For Off Road and Race Use Only" category. It may not be legal for street use. You agree to check your local state laws for legality prior to installing it and using it on a vehicle intended for street use.

You also understand that by increasing the power output of your engine you may cause harm to the power train of your vehicle and shorten the life of the engine and related components (if not used as intended).

By purchasing this unit you understand and agree to release 500 MADNESS, MADNESS Autoworks, Magneti Marelli, its affiliated companies and partners, its owners, officers and staff from any damages, costs, legal and non legal issues that may arise from the use of this product.

You agree that 500 MADNESS, MADNESS Autoworks, Magneti Marelli its affiliated companies and partners, its owners, officers and staff are limited in their responsibility from anything that may happen by the use of this product and agree to hold all parties involved harmless from any costs or issues that may be associated with the use of this product.

Magneti Marelli S.p.A. is an Italian company which deals with development and manufacturing of systems, modules and high-technology components for the automotive industry. A subsidiary of Fiat Group, it has 34,000 employees and a turnover of 5.8 billion euro in 2012.

Headquartered in Corbetta (province of Milan), the company includes 83 manufacturing plants, 12 R&D centres and 26 application centers in 18 countries.

Magneti Marelli was founded in 1919 as a joint-venture between Fiat and Ercole Marelli, and was named as F.I.M.M. - Fabbrica Italiana Magneti Marelli; the first plant was established in Sesto San Giovanni near Milan, Italy. The company started as a magneto and electrical equipment manufacturer.

Magneti Marelli currently deals with intelligent systems for active and passive safety of vehicles, as well as in the powertrain area.

The business lines include automotive lighting systems, body control systems, powertrain control systems, electronic instrument clusters, telematics systems, and computers, suspension systems and components, exhaust systems, and motorsport, wherein Magneti Marelli develops specific electronic systems for Formula One, Motorcycle Grand Prix and the World Rally Championship.

Sub-brands of the company include AL-Automotive Lighting, Carello, Cromodora, Cofap, Ergom Automotive, Jaeger, Paraflu, Siem SpA, Veglia Borletti, Vitaloni and Weber.

Magneti Marelli worked with Ford Motor Company and Microsoft Auto to develop an in-dash computer (carputer) for Ford's work truck division introduced in 2008 — with a built-in 6.5-inch, high-resolution touch screen and Bluetooth, USB connectivity, GPS Navigation, voice recognition, as well as general office applications, e.g., word processing, contact, and calendar.[

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