2008 Subaru Impreza: Find The Perfect Exhaust Kit

Hey Subaru enthusiasts! Are you looking to boost the performance and sound of your 2008 Subaru Impreza? Upgrading your exhaust system is a fantastic way to achieve just that. Let's dive into the world of exhaust kits and find the perfect match for your ride. In this article, we'll cover everything from the benefits of upgrading to what to look for in an exhaust kit.

Why Upgrade Your 2008 Subaru Impreza's Exhaust System?

Enhanced Performance: One of the primary reasons many Impreza owners consider an exhaust upgrade is the potential for performance gains. The factory exhaust systems are often designed with cost and emissions in mind, which can restrict the engine's ability to breathe efficiently. By installing an aftermarket exhaust kit, you can reduce backpressure and allow exhaust gases to flow more freely. This improved flow can result in noticeable increases in horsepower and torque, giving your 2008 Impreza a more responsive and powerful feel.

Improved Sound: Let's be honest, the stock exhaust sound on many cars is pretty uninspiring. An aftermarket exhaust kit can transform your Impreza's sound into a throaty, aggressive rumble that announces its presence. Whether you prefer a deep, mellow tone or a more aggressive, raspy note, there's an exhaust kit out there that can deliver the sound you're looking for. Just be mindful of local noise ordinances to keep things legal and neighbor-friendly.

Aesthetic Appeal: Beyond performance and sound, an aftermarket exhaust can also enhance the overall look of your Impreza. Many kits come with polished stainless-steel tips that add a touch of sporty flair to the rear of your car. A shiny new exhaust system can be a real head-turner, especially when paired with other visual modifications.

Weight Reduction: Stock exhaust systems can be surprisingly heavy, especially those equipped with bulky mufflers and resonators. Aftermarket exhaust kits, particularly those made from stainless steel or titanium, can significantly reduce weight. This weight reduction can improve your car's handling and acceleration, contributing to a more engaging driving experience.

Increased Fuel Efficiency: While not the primary reason for upgrading, some aftermarket exhaust systems can contribute to improved fuel efficiency. By allowing the engine to breathe more efficiently, the engine doesn't have to work as hard, potentially resulting in slightly better gas mileage. However, keep in mind that the actual fuel efficiency gains can vary depending on your driving style and other modifications.

Types of Exhaust Kits for Your 2008 Subaru Impreza

When it comes to upgrading your 2008 Subaru Impreza's exhaust system, you'll encounter several different types of kits. Each type offers its unique benefits and is designed to cater to different needs and preferences. Understanding the distinctions between these kits will help you make an informed decision and select the one that best suits your driving style and goals.

Cat-Back Systems: Cat-back systems are among the most popular choices for Impreza owners looking to upgrade their exhaust. These systems replace everything from the catalytic converter back to the exhaust tips, including the mid-pipe and muffler. Cat-back systems offer a good balance of performance gains, improved sound, and relatively easy installation. They typically provide a noticeable increase in horsepower and torque, along with a more aggressive exhaust note. They are also generally emissions-legal, as they retain the factory catalytic converter.

Axle-Back Systems: Axle-back systems are a more budget-friendly option that replaces only the components from the rear axle to the exhaust tips, primarily the muffler. While they may not offer the same level of performance gains as cat-back systems, axle-back systems can still significantly enhance the sound of your Impreza. They are also relatively easy to install, often requiring only basic hand tools. If you're primarily looking to improve the sound of your car without breaking the bank, an axle-back system might be the perfect choice.

Header-Back Systems (Full Exhaust Systems): For those seeking maximum performance gains, a header-back system, also known as a full exhaust system, is the way to go. These systems replace the entire exhaust system, from the exhaust manifold (headers) to the exhaust tips. Header-back systems offer the most significant improvements in exhaust flow, resulting in substantial increases in horsepower and torque. However, they are also the most expensive option and can be more complex to install. Additionally, replacing the factory headers may require modifications to the engine management system and may not be emissions-legal in all areas.

Muffler Deletes: Muffler deletes involve removing the muffler altogether and replacing it with a straight pipe. This is the most aggressive and loudest option, providing a raw and unfiltered exhaust sound. However, muffler deletes typically don't offer any performance gains and can be excessively loud for some people's tastes. They may also be illegal in some areas due to noise regulations.

Factors to Consider When Choosing an Exhaust Kit

Okay, so you're ready to take the plunge and upgrade your 2008 Impreza's exhaust system. Awesome! But before you click that "buy" button, let's go over some key factors to keep in mind to make sure you choose the right kit for your needs.

Sound Level and Tone: Sound is subjective, guys! What sounds amazing to one person might be annoying to another. Think about what kind of exhaust note you're after. Do you want a deep, mellow rumble? Or a more aggressive, raspy scream? Check out sound clips and videos online to get an idea of how different exhaust kits sound on a 2008 Impreza. Also, consider your neighbors! A super loud exhaust might not make you the most popular person on the block.

Performance Goals: What are you hoping to achieve with your exhaust upgrade? Are you looking for maximum horsepower gains for track days? Or are you more interested in improved throttle response for daily driving? Different exhaust kits offer different levels of performance improvement. If you're serious about performance, a full header-back system might be the way to go. But if you're just looking for a little extra pep, a cat-back or axle-back system might be sufficient.

Budget: Let's face it, exhaust kits can range from a few hundred dollars to well over a thousand. Set a budget before you start shopping so you don't overspend. Keep in mind that the price of the kit isn't the only cost involved. You'll also need to factor in installation costs, unless you're planning to do it yourself.

Installation: How comfortable are you with working on cars? Some exhaust kits are designed for easy bolt-on installation, while others may require more extensive modifications. If you're not mechanically inclined, you might want to consider having a professional install the exhaust kit for you. This will ensure that it's installed correctly and safely.

Materials and Durability: Exhaust systems are exposed to harsh conditions, including heat, moisture, and road salt. Choose an exhaust kit made from high-quality materials like stainless steel or titanium for maximum durability and corrosion resistance. A well-made exhaust kit will last for many years, providing you with long-lasting performance and enjoyment.

Emissions Compliance: This is a big one! Make sure that the exhaust kit you choose is legal in your area. Many aftermarket exhaust components are not emissions-legal and may not pass inspection. Check your local laws and regulations before purchasing an exhaust kit. Generally, cat-back systems are emissions-legal because they retain the factory catalytic converter, but it's always best to double-check.

Top Exhaust Kit Brands for the 2008 Subaru Impreza

Alright, so you're probably wondering which brands make the best exhaust kits for your 2008 Impreza. Here are a few of the top names in the business, known for their quality, performance, and sound:

Invidia: Invidia is a popular choice among Subaru enthusiasts, known for their high-quality stainless steel exhaust systems that offer a great balance of performance and sound. Their Gemini cat-back exhaust is a particularly popular option for the Impreza.

Nameless Performance: Nameless Performance offers a range of exhaust options for the Impreza, including axle-back and cat-back systems. They are known for their customizable exhaust tips and sound levels, allowing you to tailor the exhaust to your specific preferences.

COBB Tuning: COBB Tuning is a well-respected brand in the Subaru community, offering a wide range of performance parts, including exhaust systems. Their cat-back exhaust systems are designed to provide optimal performance gains and a sporty exhaust note.

Borla: Borla is a well-known name in the exhaust industry, producing high-quality stainless steel exhaust systems for a variety of vehicles, including the Subaru Impreza. Their exhaust systems are known for their durability and distinctive sound.

Injen: Injen Technology is another reputable brand that offers exhaust systems for the 2008 Subaru Impreza. Their exhaust systems are designed to improve exhaust flow and increase horsepower, while also providing a sporty exhaust note.

Installation Tips for Your New Exhaust Kit

So, you've picked out your dream exhaust kit, and it's finally arrived! Now comes the fun part: installing it. Here are a few tips to make the installation process go smoothly:

• Gather Your Tools: Before you start, make sure you have all the necessary tools on hand. This typically includes a socket set, wrenches, a ratchet, penetrating oil, and potentially a hacksaw or exhaust cutter if you need to remove the old system.
• Safety First: Always wear safety glasses and gloves when working under your car. Exhaust systems can be hot, and you don't want to get burned or get debris in your eyes.
• Penetrating Oil is Your Friend: Spray all the exhaust bolts with penetrating oil a day or two before you plan to do the installation. This will help loosen them up and prevent them from breaking.
• Use a Jack and Jack Stands: Never work under a car that is only supported by a jack. Use jack stands to securely support the car before you start working.
• Follow the Instructions: Read the instructions that come with your exhaust kit carefully before you start. This will help you avoid any mistakes and ensure that you install the system correctly.
• Take Your Time: Don't rush the installation process. Take your time and double-check your work to ensure that everything is properly installed and tightened.
• Check for Leaks: After you've installed the new exhaust system, start the car and check for any exhaust leaks. If you hear any hissing or see any smoke, tighten the connections until the leak is gone.

Maintaining Your Upgraded Exhaust System

Once you've installed your new exhaust kit, it's important to maintain it properly to ensure that it lasts for many years. Here are a few tips for keeping your exhaust system in good condition:

• Regular Inspections: Periodically inspect your exhaust system for any signs of damage or corrosion. Check for leaks, cracks, or loose connections.
• Clean Your Exhaust Tips: Keep your exhaust tips clean and polished to maintain their appearance. Use a stainless-steel cleaner or polish to remove any dirt or grime.
• Avoid Harsh Chemicals: Avoid using harsh chemicals or cleaners on your exhaust system, as they can damage the finish.
• Address Problems Promptly: If you notice any problems with your exhaust system, such as leaks or unusual noises, address them promptly to prevent further damage.

So there you have it – a comprehensive guide to finding the perfect exhaust kit for your 2008 Subaru Impreza. With the right exhaust system, you can unlock your Impreza's hidden potential and enjoy a more exhilarating driving experience. Happy modding!