Beginner’s Guide to Subaru and Nissan Modifications

Beginner’s Guide to Subaru and Nissan Modifications

August 28, 2023

Beginner’s Guide to Subaru and Nissan Modifications

Subaru and Nissan are two popular automotive brands known for their performance and reliability. If you own a Subaru or Nissan vehicle and are looking to enhance its capabilities, modifications can be a great way to achieve your desired results. In this blog post, we will provide a beginner’s guide to Subaru and Nissan modifications, highlighting some popular options and factors to consider.

1. Exhaust System Upgrades

One of the most common modifications for Subaru and Nissan vehicles is upgrading the exhaust system. A performance exhaust can improve both the sound and performance of your vehicle. Aftermarket exhaust systems are designed to maximize airflow, reduce backpressure, and increase horsepower and torque. Options include cat-back systems, which replace the exhaust system from the catalytic converter back, and headers, which improve exhaust flow from the engine.

When choosing an exhaust system, consider factors such as material (stainless steel is highly recommended for durability), noise level, and legality in your region. It’s also important to ensure that the aftermarket exhaust is compatible with your specific Subaru or Nissan model.

2. Cold Air Intake

Upgrading the air intake system can also provide a noticeable improvement in performance. A cold air intake system allows fresher and denser air to enter the engine, leading to increased horsepower and torque. These systems typically replace the factory air filter box and snorkel with a larger, more efficient intake tube and a high-flow air filter.

Cold air intakes are relatively easy to install and can provide instant power gains. It’s important to research and choose a reputable brand that ensures proper air filtration to protect your engine from contaminants.

3. Suspension Upgrades

For Subaru and Nissan owners looking to improve handling and overall driving experience, suspension upgrades are worth considering. This modification can enhance stability, reduce body roll, and provide better control during turns and maneuvers. There are various options available, ranging from lowering springs and coilovers to strut tower braces and sway bars.

Lowering springs and coilovers can improve the vehicle’s stance and lower the center of gravity, resulting in better grip and responsiveness. Strut tower braces and sway bars can help reduce body flex and increase chassis stiffness. It’s important to choose suspension upgrades that are compatible with your specific vehicle and consider the intended use (e.g., daily driving, track use) to achieve the desired balance between comfort and performance.

4. ECU Tuning

ECU (Engine Control Unit) tuning is a popular modification for Subaru and Nissan vehicles that can unlock hidden performance potential. The ECU is responsible for controlling various aspects of the engine, such as fuel injection, ignition timing, and boost pressure. Tuning the ECU can optimize these parameters, resulting in increased horsepower, torque, and overall performance.

ECU tuning can be done through software modifications or by using handheld tuners. It’s important to note that ECU tuning should be performed by experienced professionals who understand the intricacies of your specific Subaru or Nissan model. Improper tuning can result in engine damage or decreased reliability.

5. Wheels and Tires

Upgrading your wheels and tires can not only enhance the aesthetics of your vehicle but also improve performance. Lightweight alloy wheels can reduce unsprung weight, resulting in better handling and acceleration. Additionally, wider and stickier tires can provide improved grip and traction, especially during spirited driving or on challenging road conditions.

When choosing wheels and tires, consider factors such as size, offset, and the intended use of your vehicle. It’s important to choose a wheel and tire package that fits your specific Subaru or Nissan model and maintains appropriate clearances.


Modifying your Subaru or Nissan vehicle can be an exciting journey that allows you to personalize and enhance its performance. However, it’s important to prioritize safety and reliability when making modifications. Before making any changes, research and consult with knowledgeable professionals who can guide you through the process. Remember to consider your budget, intended use, and compatibility with your specific model. With careful planning and execution, Subaru and Nissan modifications can take your driving experience to new heights.

Got Questions? Let Us Help!

Welcome to Fine Line Imports! Fine Line Imports is a family-owned and -operated repair shop that specializes in Japanese automotive repair. We are experienced and trained to repair and maintain Subaru, Nissan, and more! We offer custom-tailored engine, transmission, and drivetrain rebuild packages, OEM services, and comprehensive tuning plans. Fine Line Imports is also a Motul fluids provider, and we are factory trained and ASE certified. We also have the only four-wheel drive chassis dynameter in the county! With this advanced tool, we can simulate road conditions under various loads up to 140 miles per hour, and consequently map performance and measure torque with various outputs. Our team is ready to help! Call us today!

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