How to Make Your Subaru Faster: Tips and Tricks for Performance Upgrades

Subaru cars have long been a favorite among car enthusiasts who want a reliable, sporty ride that can be modified for even better performance. Whether you own a WRX, STI, or another model, there are a variety of modifications you can make to boost your car’s acceleration and speed. In this article, we’ll explore some practical tips and tricks for improving your Subaru’s performance through engine upgrades, exhaust systems, and suspension enhancements.

Engine Modifications

One of the most popular ways to increase your Subaru’s power and speed is by upgrading the engine. Here are some options to consider:

Air Intake Systems

Upgrading your car’s air intake system can help improve engine performance by increasing airflow to the engine. This means more oxygen for combustion, which can result in better acceleration and fuel efficiency. Some popular brands for air intake systems are K&N and Mishimoto.


Turbochargers can help significantly improve your car’s horsepower by forcing air into the engine at a higher pressure than normal. This creates more power and faster acceleration, though it can also lead to higher fuel consumption, so bear that in mind.

Engine Tuning

Engine tuning is an essential step when it comes to upgrading your car’s performance. This process involves changing the factory settings in your car’s computer that regulate engine performance. It can be done either with an aftermarket engine control unit (ECU) or by re-tuning the existing ECU. When done correctly, engine tuning can increase horsepower and torque while maintaining fuel efficiency.

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Exhaust Systems

Upgrading the exhaust system can help increase airflow, which means more power, and better fuel efficiency. Some options to consider are:

High-Performance Mufflers

High-performance mufflers are designed to reduce backpressure in the exhaust system and allow for better airflow. This can help increase horsepower and torque while also improving the car’s exhaust note.

Cat-Back Exhaust Systems

A cat-back exhaust system replaces everything from the catalytic converter back. This can result in a significant improvement in exhaust flow, which leads to better acceleration and overall performance.

Suspension Upgrades

Upgrading the suspension can help improve handling and traction, which can be essential for high-speed driving. Here are some options to consider:

Coilover Suspension

Coilover suspension offers a wide range of adjustability and can provide better handling, ride, and camber adjustments. Brands like Bilstein, KW, and Tein are popular options.

Performance Springs

Performance springs can lower the vehicle’s center of gravity and provide better handling. However, be careful not to lower the vehicle too much, as this can result in issues such as bottoming out and scraping the undercarriage.

Sway Bars

Upgrading sway bars can improve a car’s handling by reducing body roll during cornering. Brands like Whiteline and Eibach offer a variety of options suitable for Subaru cars.


Is it legal to modify my car’s performance?

It is essential to check local laws and regulations before modifying your car’s performance. In many cases, modifications may lead to the car failing inspections, resulting in fines and impounding of the vehicle.

Can I still use my car for daily driving after modifications?

Yes, modifications do not disqualify a vehicle from daily use. It is essential to ensure the modifications are safe and reliable.

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How much will these modifications cost?

Costs vary depending on the specific modifications, as well as the brand and installation requirements. Air intake systems range from $150 to $300, while exhaust systems can cost anywhere from $500 to $2,000. Suspension upgrades can cost anywhere from $500 to more than $1,500, depending on the brand and type of suspension.


Modifying your Subaru for better performance can significantly improve its acceleration, speed, and overall driving experience, but it’s crucial to choose the right upgrades and ensure that they’re installed correctly. By upgrading your air intake and exhaust systems, tuning your engine, and upgrading your suspension, you can take your Subaru to the next level. Remember, it’s always essential to consult with a professional and know your local regulations before making any modifications to your car.

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Joseph Weaver

With a background in engineering and a passion for cars, Joseph brings a unique perspective to our blog. He's particularly interested in the technology and innovation behind Subaru's advanced safety features, and his articles on this topic are always insightful and informative. When he's not writing, he enjoys playing video games and spending time with his family.

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