2009 Subaru Impreza WRX: Mods, Tips & Upgrades

Hey guys! So, you're here because you're interested in the 2009 Subaru Impreza WRX and the awesome world of modifications, right? Well, you've come to the right place. The 2009 WRX is a legend, a favorite among car enthusiasts, and for good reason. It's got that perfect blend of practicality, performance, and the ability to be transformed into something truly special. This guide is all about helping you understand what makes the 2009 WRX tick and how you can take it to the next level. We're going to dive deep into the modifications, upgrades, and everything in between. Whether you're a seasoned gearhead or just starting out, this should be a fun ride.

The Allure of the 2009 Subaru Impreza WRX

Let's start with why the 2009 Subaru Impreza WRX is such a beloved car. First off, it's the rally-bred heritage. Subaru has a long and storied history in the World Rally Championship, and the WRX is essentially a street-legal version of those high-performance machines. This means it's built to handle, with a standard all-wheel-drive system that provides exceptional grip and control, especially in challenging conditions. The 2009 model is powered by a 2.5-liter turbocharged and intercooled horizontally opposed four-cylinder engine (aka a boxer engine). This engine produces a healthy amount of horsepower and torque, providing brisk acceleration and a fun driving experience. The boxer engine design has its advantages, including a low center of gravity, which contributes to the car's handling prowess. Beyond its performance capabilities, the 2009 WRX offers practicality. It's a compact car with a decent amount of cargo space, making it a viable daily driver. It's also relatively affordable, which means that you can get into a high-performance car without breaking the bank. The 2009 WRX's versatility is a big part of its appeal, which makes it a great platform for modifications. The aftermarket support for the WRX is extensive, with a wide variety of parts and upgrades available to suit all kinds of preferences and budgets. You can easily find performance parts, such as engine upgrades, suspension components, and exhaust systems. Cosmetically, there are options for exterior enhancements, such as body kits, spoilers, and wheels. The interior can also be customized with performance seats, upgraded stereos, and other accessories. This level of customization is a significant factor in the WRX's popularity, allowing owners to create a car that reflects their individual style and driving goals. The community surrounding the WRX is also really strong. There are numerous online forums, clubs, and social media groups dedicated to the WRX, providing owners with a platform to share their experiences, ask for advice, and connect with other enthusiasts. This sense of community adds another layer of enjoyment to owning and modifying a WRX. So, it's not just a car; it's a lifestyle.

Modifying Your 2009 WRX: Performance Upgrades

Alright, let's get into the good stuff – the modifications! Performance upgrades are usually the first thing that comes to mind when you're thinking about enhancing your 2009 WRX. Here's a breakdown of the most popular and effective performance modifications:

• Engine Tuning and ECU Remaps: The stock ECU (Engine Control Unit) is programmed for a balance of performance and fuel efficiency. A custom tune can unlock a significant amount of power. Many companies offer tuning services or access to tuning software, allowing you to optimize your engine's performance. The first stage of tuning often involves simple bolt-on modifications, such as a cat-back exhaust and an intake. These modifications can provide gains of around 20-30 horsepower. Stage 2 tunes typically add a downpipe, which can provide more significant power gains. Stage 3 tunes might include more extensive modifications, such as upgraded fuel injectors and turbochargers. Tuning is critical for any performance upgrades, as it ensures that the engine is running at its optimal performance level and prevents damage. A reputable tuner can help you find the best setup for your specific goals and driving style.
• Turbocharger Upgrades: The stock turbocharger on the 2009 WRX is decent, but upgrading it can provide a massive increase in power. There are many options, from slightly larger turbos to full-blown turbo kits. When considering a turbo upgrade, it's essential to consider the supporting modifications needed, such as upgraded fuel injectors, fuel pump, and intercooler. These components are necessary to ensure that the engine can handle the increased airflow and fuel demands. Also, it's important to consider your goals. If you're looking for a car that is quick on the track, you might prioritize a turbo that delivers a wider powerband. If your goal is drag racing, you might want to look into a turbo that prioritizes peak horsepower. Keep in mind that turbo upgrades can significantly increase the cost of your project, so it is important to factor in the installation costs.
• Exhaust Systems: Upgrading the exhaust system can improve both performance and sound. A cat-back exhaust system replaces the exhaust components from the catalytic converter back, while a downpipe replaces the section of exhaust connected directly to the turbo. These modifications can reduce exhaust restriction, allowing for better airflow and improved engine performance. There are a variety of exhaust options available, including stainless steel and titanium systems, which offer different performance and aesthetic benefits. When selecting an exhaust, it's important to consider your overall goals. If you are looking for more power, you should look for an exhaust with a larger diameter and less restrictive design. If sound is your primary concern, look for an exhaust system that has a deep, throaty growl, with proper sound dampening technology.
• Intercooler Upgrades: The intercooler cools the air that enters the engine, which is crucial for optimal performance. Upgrading the intercooler can improve the engine's efficiency, especially on turbocharged engines. There are both front-mount intercoolers (FMICs) and top-mount intercoolers (TMICs). FMICs are generally more efficient, but they require more extensive installation. TMICs are easier to install but may not be as effective at cooling the air in high-performance applications. The intercooler is an important component of your WRX's performance system. Upgrading it is a great idea if you are planning on making significant modifications to your engine.

Enhancing Handling and Suspension on Your 2009 WRX

Now, let's talk about handling and suspension. The 2009 WRX handles pretty well out of the box, but you can significantly improve its cornering ability and overall driving experience with some strategic upgrades:

• Coilovers: Coilovers are a popular upgrade for improving handling and ride height. They replace the stock suspension components with adjustable shocks and springs. Coilovers allow you to fine-tune your car's ride height, damping, and rebound. This allows you to dial in the handling characteristics for your specific driving style and track conditions. There are many different brands and models of coilovers available, ranging from entry-level to high-end racing setups. When selecting coilovers, it's important to consider your goals. If you are looking for a track car, you will want a coilover setup that is designed for performance. If you are looking for a daily driver, you will want to select a coilover that offers a comfortable ride. Coilovers are a great way to customize the handling and ride height of your car.
• Sway Bars: Sway bars (also known as anti-roll bars) reduce body roll during cornering. Upgrading the sway bars can improve the car's stability and responsiveness, leading to a more controlled driving experience. You can upgrade both the front and rear sway bars. Larger sway bars provide a more noticeable effect on handling. This is especially true when combined with other suspension upgrades. Sway bars can be a cost-effective way to improve handling and reduce body roll. Many aftermarket sway bars are available, with varying stiffness levels. Selecting the right sway bar for your WRX will depend on your driving style and the type of performance you are looking for.
• Strut Bars and Chassis Bracing: Strut bars connect the strut towers, increasing chassis rigidity. Chassis bracing, such as subframe braces, further enhances the car's structural integrity. These upgrades improve the car's responsiveness and reduce chassis flex, which can be especially noticeable during aggressive driving. Chassis bracing is a great way to improve the overall performance of your car, especially if you plan to track your WRX. Strut bars are relatively easy to install and can provide an immediate improvement in handling. Chassis bracing is more complex, but the benefits can be significant.
• Suspension Bushings: Upgrading the suspension bushings can tighten up the car's handling and steering response. Stock bushings are often made of rubber, which can flex under load. Replacing them with polyurethane or solid bushings reduces flex and provides more direct feedback to the driver. Suspension bushings are often overlooked, but they can have a significant impact on the handling of your car. There are bushings for almost all suspension components, allowing for a comprehensive upgrade. This type of upgrade can be labor-intensive, but the improvement in performance is definitely worth the effort. It is also important to consider the durability of the bushings.

Styling and Exterior Modifications

Let's get into the look of your 2009 WRX. Exterior modifications are all about making your car stand out. This is a very subjective area, so the best modifications are those that reflect your personal style.

• Wheels and Tires: Upgrading your wheels and tires is a great way to enhance the appearance and performance of your WRX. Aftermarket wheels come in a variety of designs, sizes, and finishes, allowing you to completely change the look of your car. Performance tires can significantly improve grip and handling. When selecting wheels, it is important to consider the size, offset, and weight of the wheels. The size and offset will determine how the wheels fit in the wheel wells. The weight of the wheels can also affect your car's performance. When selecting tires, you will want to consider the type of driving you will be doing. If you are looking for performance, you should consider performance tires. If you are looking for fuel efficiency, you should consider all-season tires.
• Body Kits and Aero Components: Body kits and aero components can add a sporty and aggressive look to your WRX. These components include front splitters, side skirts, rear diffusers, and spoilers. They not only enhance the visual appeal but also can improve aerodynamics, especially at higher speeds. When installing a body kit, it's important to ensure that it is compatible with your car's design. Aero components can also affect your car's performance. By improving the airflow, aero components can improve the car's stability and handling.
• Lighting Upgrades: Upgrading the lighting on your WRX can improve both its appearance and visibility. This can include upgrading headlights, taillights, and fog lights. There are many different lighting options available, including LED and HID lights. These lights can be brighter and more energy-efficient than stock lights. When upgrading your lights, it's important to ensure that the lights are compatible with your car's electrical system. You should also consider the local regulations regarding lighting. Lighting upgrades are a great way to personalize your car.
• Exterior Accessories: There are many other exterior accessories available to customize the look of your WRX. These include grilles, window visors, and carbon fiber accessories. These accessories can add a unique touch to your car. They can also improve the car's functionality. For example, window visors can help reduce glare and improve ventilation. Exterior accessories are a great way to personalize your car. There is an accessory for every style. They also give you an opportunity to upgrade the material of some components. Carbon fiber has become a staple in the modification community.

Interior and Comfort Modifications for the 2009 WRX

Let's not forget about the inside! The interior is where you'll spend most of your time, so it's worth customizing to your liking. Here are some popular interior and comfort modifications:

• Seats: Upgrading your seats can significantly improve comfort and support, especially during spirited driving. Performance seats often provide better bolstering and can help hold you in place during hard cornering. There are many options available, from basic sport seats to full racing buckets. When selecting seats, it's important to consider your body type and driving style. If you are a tall person, you will want to select a seat that offers sufficient head and legroom. If you are a track enthusiast, you will want to select a seat that provides better support. The seat material is another important consideration. Leather seats are luxurious, but they can be hot in the summer. Cloth seats are more breathable, but they can be more difficult to clean. Upgrade your seats to reflect your personal taste.
• Steering Wheels: Upgrading your steering wheel can improve both the look and feel of your interior. Aftermarket steering wheels come in various sizes and shapes, with different materials and stitching. This allows you to customize the steering wheel to your liking. When selecting a steering wheel, consider its size, material, and grip. A smaller steering wheel can improve steering response. Steering wheels come in various materials, including leather, Alcantara, and carbon fiber. Each material offers a unique feel and appearance. Selecting the right steering wheel is important for both performance and comfort.
• Audio Upgrades: Upgrading the audio system can significantly improve your listening experience. This can include replacing the head unit, speakers, and amplifiers. There are many different audio systems available, from basic to high-end setups. The head unit is the control center for your audio system. You can select a head unit with features such as Bluetooth, Apple CarPlay, and Android Auto. Speakers are the heart of your audio system. Replacing them can significantly improve the sound quality. Amplifiers can boost the signal to the speakers, allowing them to deliver more power. Upgrading your audio system is a great way to personalize your interior.
• Interior Trim and Accessories: There are many other interior trim and accessories available to customize the look and feel of your interior. This can include replacing the shift knob, pedals, and dash trim. These accessories can add a unique touch to your interior. They can also improve the functionality of your car. For example, replacing your shift knob can improve shifting feel. Interior trim and accessories are a great way to personalize your car. There is an accessory for every taste. The market provides a huge range of modifications that you can apply to the interior.

Important Considerations Before Modifying Your 2009 WRX

Before you dive headfirst into modifications, there are a few important things to keep in mind:

• Budgeting: Modifications can get expensive quickly. It's essential to set a budget and stick to it. Prioritize the modifications that are most important to you and be realistic about what you can afford. Make sure to consider the installation costs, especially if you're not doing the work yourself. Keep an eye out for sales and used parts to save money. Budgeting is very important when customizing your car. Make sure to start with a realistic budget and stick to it. Many people get carried away when they start modifying their car, so keeping track of expenses is crucial.
• Reliability: Performance modifications can sometimes affect your car's reliability. It's crucial to research the parts you're using and ensure they're of high quality. Make sure to have your car regularly maintained and have any modifications properly installed. If you are planning on making significant modifications to your car, you may want to consult with a professional mechanic. The mechanic can help you to ensure that the modifications are done correctly, and that your car remains reliable. It is important to remember that every modification impacts the reliability of your car.
• Legal Regulations: Be aware of local laws and regulations regarding modifications. Some modifications, such as exhaust systems and tinted windows, may not be legal in your area. Make sure to research the local laws before making any modifications. Some states have strict regulations regarding modifications. It is important to be aware of these regulations before starting your modifications. Ignoring these laws can lead to fines, or even the loss of your car. Researching and following local laws can keep you out of trouble.
• Professional Installation: While you might be tempted to do all the work yourself, some modifications require specialized knowledge and tools. If you're not experienced with car mechanics, it's best to have a professional install these parts. This is especially true for engine and suspension modifications. Professional installation can help ensure that the modifications are done correctly and safely. A professional mechanic can also help you diagnose any problems that may arise. Spending extra money on professional installation can save you money in the long run.

Conclusion: Making Your 2009 WRX Your Own

Modifying a 2009 Subaru Impreza WRX is an incredibly rewarding experience. It's a chance to take an already fantastic car and make it even better, tailoring it to your specific driving preferences and style. Remember to research thoroughly, set a budget, and prioritize your goals. Have fun with it, and enjoy the process of transforming your WRX into a true reflection of your personality. Happy modifying, and enjoy the ride! Feel free to hit the forums, check out online groups, and reach out to other owners. This community is a great resource, so tap into it! You've got this.