2007 Subaru Impreza WRX Exhaust Guide

Nov 12, 2025 by Alex Braham 38 views

So, you're looking to upgrade the exhaust on your 2007 Subaru Impreza WRX? Awesome! A new exhaust system can seriously transform your driving experience, boosting performance, enhancing that iconic Subaru rumble, and giving your ride a more aggressive edge. But with so many options out there, it's easy to feel overwhelmed. Don't worry, this guide is here to break down everything you need to know about choosing the perfect exhaust for your 2007 WRX. From understanding the different types of exhaust systems to navigating the maze of brands and features, we'll cover it all. By the end, you'll be well-equipped to make an informed decision and get the most out of your Subaru. So, let's dive in and explore the world of WRX exhausts!

Why Upgrade Your 2007 WRX Exhaust?

Before we get into the nitty-gritty details, let's talk about why you might want to upgrade your exhaust in the first place. There are several compelling reasons to consider a new exhaust system for your 2007 WRX:

Performance Gains: This is often the primary motivation for many WRX owners. The factory exhaust system is designed to meet certain emissions and noise regulations, which can restrict exhaust flow. An aftermarket exhaust, especially a cat-back or turbo-back system, is designed to improve exhaust flow, reducing backpressure and allowing the engine to breathe more freely. This can result in noticeable gains in horsepower and torque, making your WRX feel more responsive and powerful. Imagine feeling that extra kick when you accelerate – that's the potential of a well-chosen exhaust.
Enhanced Sound: Let's be honest, the sound of a Subaru is a big part of its appeal. The stock exhaust, while functional, often lacks the deep, aggressive rumble that many enthusiasts crave. An aftermarket exhaust can dramatically enhance the sound of your WRX, giving it a more distinctive and sporty tone. Whether you're after a subtle, refined growl or a loud, head-turning roar, there's an exhaust system out there to match your preference. It's about finding the perfect soundtrack for your driving experience.
Improved Aesthetics: While performance and sound are key, the visual appeal of a new exhaust system shouldn't be overlooked. Many aftermarket exhausts feature polished stainless steel tips or other stylish designs that can add a touch of visual flair to the rear of your WRX. A clean, well-designed exhaust can complement the overall look of your car and make it stand out from the crowd. Think of it as the finishing touch that completes the sporty aesthetic of your WRX.
Weight Reduction: Some aftermarket exhaust systems are made from lighter materials like stainless steel or titanium, which can reduce the overall weight of your car. While the weight savings might not be dramatic, every little bit helps, especially when it comes to performance. Reducing weight can improve handling, acceleration, and braking, making your WRX feel more nimble and responsive. It's a small change that can make a noticeable difference.

Types of Exhaust Systems for Your 2007 WRX

Now that you know why you might want to upgrade your exhaust, let's take a look at the different types of exhaust systems available for your 2007 WRX. The main types you'll encounter are:

Axle-Back Exhaust: An axle-back exhaust replaces the section of the exhaust system from the rear axle to the exhaust tips. This is generally the most affordable and easiest to install type of exhaust upgrade. Axle-back systems primarily focus on improving the sound and aesthetics of your WRX, with only minimal performance gains. If you're mainly after a better sound without breaking the bank, an axle-back is a good option. Installation is usually straightforward, often requiring just basic hand tools.
Cat-Back Exhaust: A cat-back exhaust replaces the exhaust system from the catalytic converter to the exhaust tips. This is a more comprehensive upgrade than an axle-back system, offering a better balance of performance, sound, and aesthetics. Cat-back systems typically feature larger diameter piping and less restrictive mufflers, which can improve exhaust flow and result in noticeable gains in horsepower and torque. For those looking for a noticeable performance boost along with enhanced sound, a cat-back is a popular choice.
Turbo-Back Exhaust: A turbo-back exhaust replaces the entire exhaust system from the turbocharger to the exhaust tips. This is the most comprehensive and performance-oriented exhaust upgrade. Turbo-back systems typically include a downpipe, which replaces the restrictive factory downpipe and further improves exhaust flow. Upgrading to a turbo-back exhaust can unleash significant horsepower and torque gains, especially when combined with other performance modifications. However, keep in mind that installing a turbo-back exhaust may require professional installation and may not be legal in all areas due to emissions regulations. Always check your local laws before installing a turbo-back system. For the serious enthusiast seeking maximum performance, a turbo-back exhaust is the ultimate upgrade.

Key Considerations When Choosing an Exhaust

With the different types of exhaust systems in mind, here are some key considerations to help you narrow down your choices for your 2007 WRX:

Sound Level and Tone: This is a crucial factor, as the sound of your exhaust will have a significant impact on your driving experience. Do you want a subtle, refined growl or a loud, aggressive roar? Consider the sound level and tone that you prefer and research exhaust systems that match your desired sound profile. Many manufacturers offer sound clips or videos of their exhausts, which can be helpful in making your decision. Think about your daily driving habits and choose a sound level that you can live with comfortably.
Material and Build Quality: The material and build quality of the exhaust system will affect its durability, performance, and appearance. Stainless steel is a popular choice for its corrosion resistance and durability, while titanium is a lightweight and strong option that offers excellent performance. Look for exhaust systems that are made from high-quality materials and feature solid construction. A well-built exhaust will last longer and perform better in the long run.
Fitment and Installation: Ensure that the exhaust system is specifically designed for your 2007 WRX and that it fits properly. Check the manufacturer's specifications and read reviews from other owners to confirm that the exhaust system is a good fit. Also, consider the installation process. Some exhaust systems are easier to install than others, and you may need to hire a professional if you're not comfortable working on your car. Proper fitment is essential for optimal performance and sound, so don't compromise on this aspect.
Emissions Compliance: Depending on your location, there may be emissions regulations that you need to comply with. Check your local laws and regulations before installing an aftermarket exhaust system to ensure that it is legal. Some exhaust systems are designed to be emissions-compliant, while others are not. Installing a non-compliant exhaust system could result in fines or other penalties, so it's important to do your research.
Budget: Exhaust systems can range in price from a few hundred dollars to several thousand dollars, so it's important to set a budget before you start shopping. Consider how much you're willing to spend and look for exhaust systems that offer the best value for your money. Don't necessarily go for the cheapest option, as quality and performance can suffer. But also don't overspend on features that you don't need. Find a balance between price and performance that works for you.

Top Exhaust Brands for the 2007 Subaru Impreza WRX

When it comes to exhaust systems for the 2007 Subaru Impreza WRX, several brands stand out for their quality, performance, and reputation. Here are some of the top brands to consider:

Invidia: Invidia is a well-known and respected brand in the Subaru community, offering a wide range of exhaust systems for the WRX. Their exhausts are known for their quality construction, excellent sound, and impressive performance gains. Invidia offers both cat-back and turbo-back systems, as well as downpipes and other exhaust components. If you're looking for a reliable and high-performing exhaust, Invidia is a great choice.
COBB Tuning: COBB Tuning is another popular brand among Subaru enthusiasts, offering a comprehensive range of performance parts and tuning solutions. Their exhaust systems are designed to work seamlessly with their other products, such as Accessports and intakes. COBB exhausts are known for their refined sound and excellent fitment. COBB is a great option for those looking for a complete performance package.
** nameless Performance:** nameless Performance is a brand that focuses on providing high-quality, handcrafted exhaust systems for the Subaru WRX. Their exhausts are known for their unique designs and aggressive sound. nameless Performance offers a variety of options, including axle-back, cat-back, and turbo-back systems. If you're looking for a unique and attention-grabbing exhaust, nameless Performance is worth checking out.
Injen Technology: Injen Technology is a brand that specializes in performance air intakes and exhaust systems. Their exhausts are known for their innovative designs and high-quality construction. Injen offers a range of exhaust systems for the WRX, including cat-back and axle-back options. Injen is a good option for those looking for a combination of performance and style.
** ম্যাগনাফ্লো:** ম্যাগনাফ্লো is a well-established brand in the aftermarket exhaust industry, offering a wide range of exhaust systems for various vehicles. Their exhausts are known for their durability, performance, and affordability. ম্যাগনাফ্লো offers both cat-back and axle-back systems for the WRX. * ম্যাগনাফ্লো is a great option for those looking for a reliable and budget-friendly exhaust*.

Installation Tips and Considerations

Once you've chosen the perfect exhaust system for your 2007 WRX, the next step is installation. Here are some tips and considerations to keep in mind:

Read the Instructions: Before you start, carefully read the installation instructions provided by the manufacturer. This will help you understand the process and avoid any mistakes. Familiarize yourself with the steps and make sure you have all the necessary tools and equipment.
Use the Right Tools: Having the right tools will make the installation process much easier and smoother. You'll likely need a socket set, wrenches, pliers, and a jack and jack stands. Using the wrong tools can damage the exhaust system or your car, so it's worth investing in quality tools.
Apply Penetrating Oil: Before you start loosening any bolts, apply penetrating oil to the threads. This will help to loosen any rust or corrosion and make it easier to remove the bolts. Let the penetrating oil soak for a few minutes before attempting to remove the bolts.
Use New Gaskets and Hardware: When installing the new exhaust system, it's always a good idea to use new gaskets and hardware. This will ensure a proper seal and prevent leaks. Old gaskets and hardware can be worn or damaged, which can compromise the performance and sound of your exhaust.
Tighten Bolts to the Correct Torque: Use a torque wrench to tighten the bolts to the manufacturer's specified torque. This will prevent the bolts from being too loose or too tight, which can damage the exhaust system or your car. Over-tightening bolts can strip the threads, while under-tightening can cause leaks.
Get Professional Help if Needed: If you're not comfortable installing the exhaust system yourself, don't hesitate to seek professional help. A qualified mechanic can install the exhaust system quickly and safely, ensuring that it's done correctly. Paying for professional installation can save you time, frustration, and potential damage to your car.

Final Thoughts

Upgrading the exhaust on your 2007 Subaru Impreza WRX is a fantastic way to improve performance, enhance sound, and add a touch of style to your ride. By understanding the different types of exhaust systems, considering the key factors, and choosing a reputable brand, you can find the perfect exhaust to meet your needs and preferences. Remember to follow the installation tips and considerations to ensure a smooth and successful installation. With a new exhaust system, your 2007 WRX will not only perform better but also sound and look amazing. So go ahead, explore your options, and get ready to experience the thrill of a truly upgraded exhaust system! Happy driving!