Upgrading your 1999 Honda Civic's exhaust system is a fantastic way to boost its performance, enhance its sound, and even improve its fuel efficiency. Whether you're aiming for a sporty rumble or just need to replace a worn-out system, understanding your options is key. Let's dive into everything you need to know to make the best choice for your Civic.

Why Upgrade Your 1999 Honda Civic's Exhaust System?

Before we get into the specifics, let's talk about why you might want to upgrade your exhaust system in the first place. There are several compelling reasons:

• Performance Boost: A less restrictive exhaust system allows your engine to breathe more freely. This means exhaust gases are expelled more efficiently, which can lead to a noticeable increase in horsepower and torque. The 1999 Civic, while reliable, can definitely benefit from a little extra pep, especially if you enjoy spirited driving.
• Enhanced Sound: Let's be honest, the stock exhaust on a '99 Civic isn't exactly thrilling. Upgrading to an aftermarket system can give your car a much more aggressive and sporty sound. Whether you prefer a deep, throaty rumble or a higher-pitched snarl, there's an exhaust system out there that will perfectly match your taste.
• Improved Fuel Efficiency: While not always the primary goal, a well-designed aftermarket exhaust can sometimes improve your fuel economy. By reducing backpressure, the engine doesn't have to work as hard, which can translate to slightly better gas mileage. It might not be a huge difference, but every little bit helps, right?
• Aesthetic Appeal: A shiny new exhaust tip can add a touch of style to the rear of your Civic. Many aftermarket systems feature polished stainless steel tips that look much better than the factory exhaust.

In short, upgrading your exhaust system is a relatively simple and cost-effective way to improve your Civic's performance, sound, and appearance. However, it's crucial to choose the right system for your needs and budget.

Understanding the Components of an Exhaust System

To make an informed decision, it's helpful to understand the different components of your Civic's exhaust system and how they work together:

• Exhaust Manifold: This is the first part of the exhaust system, bolted directly to the engine. It collects exhaust gases from each cylinder and channels them into a single pipe. Aftermarket headers are a popular upgrade, offering improved flow and performance compared to the stock manifold.
• Catalytic Converter: This crucial component reduces harmful emissions by converting pollutants like hydrocarbons, carbon monoxide, and nitrogen oxides into less harmful substances. It's a vital part of keeping your Civic environmentally friendly and street legal. Replacing a clogged or damaged catalytic converter can also improve performance.
• Resonator: The resonator helps to reduce noise and refine the exhaust note. It's typically located in the middle of the exhaust system. Some aftermarket systems eliminate the resonator for a louder, more aggressive sound.
• Muffler: The muffler is the final component in the exhaust system, and its primary job is to quiet the exhaust noise. It uses a series of chambers and baffles to reduce sound waves. Aftermarket mufflers come in a wide variety of styles and sound levels, allowing you to customize the exhaust note to your liking.
• Piping: The piping connects all the various components of the exhaust system. The diameter and design of the piping can significantly impact exhaust flow and performance. Aftermarket systems often use larger diameter piping and smoother bends to maximize flow.

Knowing how these components function will help you understand the differences between various aftermarket exhaust systems and choose the one that best suits your needs.

Types of Exhaust Systems for the 1999 Honda Civic

When it comes to upgrading your 1999 Civic's exhaust, you have several options to choose from:

• Axle-Back Systems: These systems replace everything from the rear axle back, including the muffler and exhaust tip. They're relatively easy to install and are a good option if you're primarily looking for a sound upgrade.
• Cat-Back Systems: Cat-back systems replace everything from the catalytic converter back to the exhaust tip. They offer a more significant performance increase than axle-back systems because they typically use larger diameter piping and a less restrictive muffler.
• Headers (Exhaust Manifolds): Replacing the stock exhaust manifold with an aftermarket header can significantly improve exhaust flow and performance. Headers are available in shorty and long tube designs, with long tube headers generally offering the best performance gains.
• Full Exhaust Systems: These systems replace the entire exhaust system, from the exhaust manifold to the exhaust tip. They offer the most comprehensive performance upgrade but are also the most expensive and require the most involved installation.

Choosing the right type of system depends on your budget, performance goals, and desired sound level. If you're just looking for a simple sound upgrade, an axle-back system might be sufficient. If you're aiming for maximum performance, a full exhaust system or a combination of headers and a cat-back system would be a better choice.

Factors to Consider When Choosing an Exhaust System

Okay, guys, so you're ready to pull the trigger on a new exhaust system? Awesome! But hold your horses just a sec. Here are some key factors to keep in mind to make sure you choose the perfect exhaust for your '99 Civic:

• Sound Level: This is a big one. Do you want a subtle rumble or a loud roar? Aftermarket exhaust systems come in a wide range of sound levels, so it's essential to choose one that matches your preferences and doesn't annoy your neighbors (or attract unwanted attention from law enforcement). Research different systems and listen to sound clips online before making a decision.
• Performance Goals: What are you hoping to achieve with your new exhaust system? Are you primarily looking for a performance boost, or are you more interested in the sound and appearance? If performance is your top priority, look for systems with larger diameter piping and less restrictive mufflers. If you're more focused on sound, you can prioritize systems with the exhaust note you like.
• Budget: Exhaust systems can range in price from a few hundred dollars to over a thousand, so it's essential to set a budget before you start shopping. Consider the cost of the system itself, as well as the cost of installation if you're not planning to do it yourself.
• Material: Most aftermarket exhaust systems are made from either aluminized steel or stainless steel. Stainless steel is more durable and resistant to rust, but it's also more expensive. Aluminized steel is a more affordable option, but it may not last as long in harsh climates.
• Ease of Installation: Some exhaust systems are easier to install than others. If you're planning to install the system yourself, look for one that is designed for easy bolt-on installation. If you're not comfortable working on cars, it's best to have a professional install the system for you.
• Legality: Be sure to check your local laws and regulations regarding exhaust modifications. Some states and municipalities have restrictions on exhaust noise levels and emissions. Make sure the system you choose is legal in your area to avoid any potential problems.

By carefully considering these factors, you can narrow down your options and choose an exhaust system that meets your needs and preferences.

Installation Tips and Considerations

So, you've got your shiny new exhaust system, and you're ready to install it? Awesome! Here are a few tips and considerations to keep in mind:

• Safety First: Always wear safety glasses and gloves when working on your car. Exhaust systems can get very hot, so make sure the exhaust is cool before you start working on it.
• Tools: Make sure you have all the necessary tools before you start. This typically includes a socket set, wrenches, a ratchet, and a jack and jack stands.
• Penetrating Oil: Spray all the bolts and nuts with penetrating oil a few hours before you start to loosen them up. This will make them much easier to remove.
• OEM fitment: Compare the new exhaust system to the old one to make sure it's a direct fit. If there are any discrepancies, consult the manufacturer's instructions or contact their customer support.
• Torque Specs: Use a torque wrench to tighten all the bolts and nuts to the manufacturer's specifications. This will ensure that the system is properly installed and won't leak.
• Exhaust Leaks: After you've installed the system, start the car and check for exhaust leaks. If you hear any hissing or see any smoke, tighten the connections until the leak is gone.

If you're not comfortable installing the exhaust system yourself, it's always best to have a professional do it. They have the experience and expertise to ensure that the system is installed correctly and safely.

Top Exhaust System Brands for the 1999 Honda Civic

When it comes to aftermarket exhaust systems, there are a lot of brands to choose from. Here are a few of the top brands that are known for their quality and performance:

• MagnaFlow: MagnaFlow is a well-known brand that offers a wide range of exhaust systems for various vehicles, including the 1999 Honda Civic. They are known for their high-quality materials, excellent sound, and performance gains.
• Flowmaster: Flowmaster is another popular brand that specializes in performance exhaust systems. They offer a variety of mufflers and systems that deliver a deep, aggressive sound.
• Borla: Borla is known for its premium stainless steel exhaust systems that offer excellent performance and durability. Their systems are designed to provide a noticeable increase in horsepower and torque.
• Invidia: Invidia is a popular choice among Honda enthusiasts. They are known for their high-quality materials, precise fitment, and excellent sound.
• Skunk2 Racing: Skunk2 Racing is a popular brand among Honda enthusiasts, known for producing high-performance parts. Their exhausts are designed for both street and track use.

Maintaining Your New Exhaust System

Once you've installed your new exhaust system, it's important to maintain it properly to ensure it lasts for years to come. Here are a few tips:

• Regular Inspections: Inspect your exhaust system regularly for any signs of damage, such as rust, leaks, or loose connections.
• Cleaning: Clean your exhaust tips regularly to keep them looking their best. Use a mild soap and water solution and a soft cloth.
• Rust Prevention: If you live in an area with harsh winters or salty roads, consider applying a rust inhibitor to your exhaust system to protect it from corrosion.
• Address Issues Promptly: If you notice any problems with your exhaust system, such as a leak or a strange noise, address them promptly to prevent further damage.

By following these maintenance tips, you can keep your exhaust system in good condition and enjoy its benefits for years to come.

Conclusion

Upgrading your 1999 Honda Civic's exhaust system can be a rewarding experience. It enhances performance, sound, and even aesthetics. By understanding the different types of systems, considering the key factors, and following the installation and maintenance tips, you can make the right choice for your Civic and enjoy the benefits of a high-quality exhaust system. So, go ahead and give your trusty '99 Civic the exhaust upgrade it deserves!