Let's dive into the world of the 2021 Ford Explorer ST and explore what makes it a compelling choice for those seeking a blend of performance and practicality. This SUV isn't just your average family hauler; it's a machine that's been infused with Ford Performance DNA, offering a driving experience that's surprisingly engaging. We're talking about how to get the most out of your Explorer ST, whether you're interested in subtle tweaks or more significant overhauls. The Explorer ST comes factory-equipped with a potent 3.0-liter EcoBoost V6 engine, churning out an impressive 400 horsepower and 415 lb-ft of torque. That's enough to propel this sizable SUV from 0 to 60 mph in around 5.5 seconds, which is seriously quick. But for many enthusiasts, that's just the starting point. The aftermarket support for the Explorer ST is growing, with a wide array of performance parts and accessories available to enhance its capabilities.

Performance Modifications

When it comes to enhancing the performance of your 2021 Ford Explorer ST, there are several avenues to explore. Let's break down some of the most popular and effective modifications:

Engine Tuning

Engine tuning is often the first step for those looking to unlock hidden power. A custom tune can remap the engine's parameters, optimizing fuel delivery, ignition timing, and boost pressure for improved performance. Several reputable tuning companies offer tunes specifically designed for the Explorer ST, and gains of 50-75 horsepower are not uncommon. However, it's crucial to choose a reputable tuner who understands the EcoBoost engine and can provide a safe and reliable tune. Be cautious of overly aggressive tunes that promise unrealistic gains, as they can potentially damage your engine in the long run.

Cold Air Intake

A cold air intake (CAI) replaces the factory airbox with a less restrictive system, allowing the engine to breathe more freely. This can result in a slight increase in horsepower and torque, as well as improved throttle response. Many CAIs also feature a heat shield to prevent the engine from drawing in hot air, which can further enhance performance. While the gains from a CAI alone may not be dramatic, it's a worthwhile upgrade, especially when combined with other modifications.

Exhaust System

Upgrading the exhaust system is another popular modification for the Explorer ST. A cat-back exhaust system replaces the factory exhaust from the catalytic converters back, typically with larger diameter pipes and a less restrictive muffler. This can improve exhaust flow, reduce backpressure, and unlock additional horsepower. An aftermarket exhaust can also enhance the sound of the Explorer ST, giving it a more aggressive and sporty tone. Just be mindful of noise levels, as some exhaust systems can be quite loud.

Intercooler Upgrade

The intercooler is responsible for cooling the air entering the engine after it has been compressed by the turbochargers. An upgraded intercooler can improve cooling efficiency, resulting in cooler intake air temperatures and increased power. This is especially beneficial in hot climates or during sustained periods of hard driving. A larger intercooler can also help to prevent heat soak, which can rob the engine of power. Several aftermarket intercooler options are available for the Explorer ST, ranging from direct replacements to more involved modifications.

Suspension and Handling

Beyond engine modifications, there are also several ways to improve the handling and suspension of your 2021 Ford Explorer ST:

Lowering Springs

Lowering springs are a relatively simple and affordable way to improve the Explorer ST's handling and appearance. They lower the ride height, which reduces body roll and improves cornering stability. Lowering springs also give the Explorer ST a more aggressive stance. However, it's important to choose springs that are compatible with the factory shocks and struts, and to have them professionally installed to ensure proper alignment.

Performance Shocks and Struts

Upgrading the shocks and struts can significantly improve the Explorer ST's handling and ride quality. Performance shocks and struts offer better damping characteristics, which can help to control body motion and improve road feel. They can also be paired with lowering springs for a complete suspension upgrade. Several aftermarket options are available, ranging from adjustable coilovers to more budget-friendly options.

Anti-Roll Bars

Anti-roll bars, also known as sway bars, connect the left and right wheels and resist body roll during cornering. Upgrading to thicker or adjustable anti-roll bars can further reduce body roll and improve handling. This is a particularly effective modification for SUVs like the Explorer ST, which tend to have a higher center of gravity.

Wheel and Tire Upgrades

The wheels and tires can have a significant impact on the Explorer ST's handling and appearance. Upgrading to lighter wheels can reduce unsprung weight, which improves acceleration, braking, and handling. Wider tires can also provide more grip, enhancing cornering performance. When choosing wheels and tires, it's important to consider the overall diameter to avoid rubbing or other fitment issues.

Aesthetic Modifications

Of course, modifying your 2021 Ford Explorer ST isn't just about performance; it's also about making it look good. Here are some popular aesthetic modifications:

Exterior Styling

Exterior styling modifications can range from subtle accents to more dramatic changes. Common upgrades include aftermarket grilles, front splitters, side skirts, rear spoilers, and window tint. These modifications can give the Explorer ST a more aggressive and customized look. When choosing exterior styling modifications, it's important to consider the overall aesthetic and to avoid anything that looks cheap or out of place.

Interior Upgrades

Interior upgrades can enhance the comfort and appearance of the Explorer ST's cabin. Popular modifications include aftermarket seats, steering wheels, shift knobs, and floor mats. You can also add custom lighting, such as LED accent lights, to create a more personalized atmosphere. When choosing interior upgrades, it's important to consider the quality and durability of the materials, as well as the overall design.

Lighting Upgrades

Lighting upgrades can improve both the appearance and functionality of the Explorer ST. Upgrading to LED headlights, taillights, and fog lights can provide brighter and more efficient lighting. You can also add aftermarket lighting accessories, such as light bars or underglow lighting, for a more customized look. However, it's important to ensure that any lighting modifications comply with local laws and regulations.

Things to Consider

Before you start modifying your 2021 Ford Explorer ST, there are a few important things to keep in mind:

Budget

Budget is always a primary concern when it comes to modifying any vehicle. It's easy to get carried away and spend a lot of money on upgrades, so it's important to set a budget and stick to it. Prioritize the modifications that are most important to you and that will provide the biggest bang for your buck. Remember to factor in the cost of labor, as some modifications require professional installation.

Warranty

Warranty is another important consideration. Modifications can potentially void your factory warranty, especially if they cause damage to the vehicle. Before making any modifications, it's a good idea to check with your dealer to see how they might affect your warranty coverage. Some aftermarket companies offer warranties on their products, which can provide some peace of mind.

Reliability

Reliability is crucial, especially for a daily-driven vehicle like the Explorer ST. While some modifications can improve performance, others can potentially compromise reliability. It's important to choose reputable brands and to have modifications installed by qualified professionals. Avoid overly aggressive tunes or modifications that push the engine or other components beyond their limits.

Conclusion

The 2021 Ford Explorer ST is a fantastic platform for modification, offering a compelling blend of performance and practicality. Whether you're looking to enhance its power, improve its handling, or simply customize its appearance, there are countless options available. By carefully considering your budget, warranty, and reliability concerns, you can create an Explorer ST that's perfectly tailored to your needs and preferences. Remember to do your research, choose reputable brands, and have modifications installed by qualified professionals to ensure the best possible results. So, what are you waiting for? Get out there and start transforming your Explorer ST into the ultimate performance SUV!