What Are the Best Performance Mods for a Fiat Abarth 500 Competizione?

When it comes to vehicles that offer a perfect blend of style, charm, and power, the Fiat Abarth 500 Competizione is a name that rises to the top. This car brims with Italian charisma and can race through city streets and open highways with remarkable ease. But as any automotive enthusiast will tell you, there’s always room for improvement. When it comes to tuning your Abarth, you’re spoilt for choice with the range of options available. In this article, we’ll walk you through some of the best performance mods that will elevate the power and performance of your Abarth 500.

Performance ECU Tuning

The Engine Control Unit (ECU) is the brain of your car. It controls the engine’s fuel/air mixture, turbo boost, and much more. By tuning the ECU, you can coax more power and torque from your Abarth.

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One vendor to consider for your ECU tuning is TMC Motorsport. They offer a box that can be easily plugged into your Abarth’s ECU, allowing you to make adjustments to your car’s parameters. This is a step-by-step process and completely reversible if you ever wish to revert to the regular settings. The TMC box can bring significant increases in power for a cost-effective price.

Another option is a genuine Fiat upgrade called the Abarth Esseesse ECU upgrade. This tuning increases the power from 160 to 180 BHP. While the cost is significantly higher, it is an official Fiat product, which offers peace of mind.

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Turbo Upgrades

If you’re looking to add a significant power boost to your Abarth, consider upgrading the turbo. A larger turbo can provide a substantial increase in power, but it’s important to remember that this will also put more strain on the engine, and it may require further modifications to handle the additional power.

The GBP Performance turbo kit is a popular choice among Abarth owners. It allows the engine to breathe easier and generate more power, especially at higher RPMs. The price may be a prohibitive factor for some, as this is one of the more expensive modifications. But, the increased power and drive satisfaction can be worth it.

Exhaust Modifications

An aftermarket exhaust can free up some power in your engine, as well as make your Abarth sound more aggressive.

The Abarth Record Monza exhaust is a popular choice. This exhaust is made by Fiat and offers a throaty, sporty sound. It adds a small amount of power and torque but is mainly chosen for the sound upgrade.

For a more significant power boost, consider the Supersprint exhaust system. This exhaust is a complete system from the turbo back and can add up to 10 BHP to your Abarth. It also offers a sporty, aggressive sound.

Suspension Upgrades

One area in which the regular Abarth 500 can be improved is the suspension. The standard suspension is fine for everyday driving, but when you push the car to its limits on a track, it can feel a bit loose.

Many aftermarket suspension kits offer a significant improvement over the standard setup. The ST Suspensions coilover kit is an excellent choice. Not only does it lower the car, giving it a more aggressive stance, but it also improves handling by reducing body roll. Prices for these kits can vary, so it’s worth shopping around.

Wheel and Brake Upgrades

Lastly, consider upgrading the wheels and brakes on your Abarth. Larger wheels can improve handling, while upgraded brakes can provide better stopping power.

Brembo is a well-known brand when it comes to performance brakes. Their big brake kit for the Abarth 500 offers significantly improved stopping power, especially when pushing the car hard.

As for wheels, lightweight alloys can improve both performance and looks. OZ Racing is a trusted brand in this department; their wheels are not only light but also incredibly durable.

Remember, when performing modifications on your car, it’s important to keep all modifications balanced. For example, if you’re adding a lot of power, you might also need to upgrade your brakes and suspension to handle the increased performance.

Carbon Fibre Enhancements

Improving the performance of your Fiat Abarth 500 Competizione is not only about engine modifications but also about optimising the car’s weight and aerodynamics. This is where carbon fibre enhancements come into play.

Adding carbon fibre panels can help reduce the weight of your Abarth, providing a slight increase in performance. Carbon fibre bonnets and boot lids from vendors such as TMC Motorsport are popular choices for their lightweight nature. They additionally offer a sleek and sporty look to your car.

Another carbon fibre modification to consider is a rear diffuser. While this modification won’t dramatically increase your car’s speed or power, it will help improve stability at high speeds by reducing turbulence and drag.

Aerodynamic upgrades such as a carbon fibre spoiler can also be beneficial. Not only does such an upgrade provide a sporty aesthetic, but it also enhances high-speed stability by generating downforce. Genuine Abarth carbon fibre spoilers are sold at a higher regular price than other vendors, but they are designed specifically for the Fiat Abarth 500 Competizione, ensuring a perfect fit and excellent performance.

Bear in mind, these carbon fibre modifications aren’t the most cost-effective, as the price GBP is usually higher than other mods. However, they can offer weight reduction, aerodynamics improvement, and an aesthetic boost, making them a worthwhile investment for many Abarth enthusiasts.

Key Cover Modifications

In the world of car modifications, even the smallest detail can make a difference. This includes the key cover to your Fiat Abarth 500 Competizione. While this might seem like a minor detail, it can add a personal touch to your car and exhibit your car enthusiasm.

Vendors such as TMC Motorsport offer a variety of key cover options, ranging from simple designs to more intricate ones. Among the more popular options is the carbon fibre key cover. Its sleek, lightweight design is a perfect complement to your Abarth, especially if you’ve already opted for other carbon fibre enhancements.

The price sale for these key covers varies between vendors, so it’s worth shopping around for the best deal. Remember, however, that a higher GBP sale price often means higher quality and durability.

While a key cover won’t improve the performance of your Abarth, it is an inexpensive modification that adds a personal touch and showcases your love for your car.


In conclusion, there are a plethora of performance mods available for the Fiat Abarth 500 Competizione that can help customise the car to your liking and enhance its performance levels. From ECU tuning and turbo upgrades to exhaust, suspension, and brake enhancements, there is a modification to suit every taste and budget.

Additional mods such as carbon fibre enhancements and key cover modifications can also add a personal touch and further enhance the aesthetics of your Abarth. Remember to balance out the power, handling, and braking upgrades to maintain optimal performance and safety levels.

While the regular price of some modifications can be high, keep in mind that the ultimate aim is to create a driving experience that is uniquely yours. Always be sure to choose genuine Abarth or trusted vendor parts like those from TMC Motorsport to ensure maximum quality and compatibility.

Whether you’re experienced in the world of car mods or just beginning your journey, enhancing the performance of your Fiat Abarth 500 Competizione can be a rewarding experience. Happy Modding!

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