Hey guys! Are you looking to boost the performance and sound of your 2008 Infiniti G35x Sedan? You've come to the right place! Upgrading your exhaust system is one of the best ways to achieve that sporty growl and unlock some hidden horsepower. But with so many options out there, it can be tough to know where to start. Don't worry, we're going to break down everything you need to consider when choosing the best exhaust system for your ride.

Why Upgrade Your 2008 Infiniti G35x Sedan Exhaust?

Before we dive into the specifics, let's talk about why you might want to upgrade your exhaust in the first place. There are several benefits to consider, and they often go hand-in-hand:

• Improved Performance: The stock exhaust system on many cars, including the 2008 Infiniti G35x Sedan, can be a bit restrictive. This means it doesn't allow exhaust gases to flow as freely as they could. An aftermarket exhaust system is designed to reduce this restriction, allowing your engine to breathe easier. This can result in noticeable gains in horsepower and torque, giving you that extra oomph when you hit the gas.

  To really understand how an exhaust system improves performance, let's delve a bit deeper into the science. Your engine is essentially an air pump, and the more efficiently it can move air in and out, the more power it can produce. The stock exhaust system is often designed with noise reduction and emissions in mind, which can sometimes compromise exhaust flow. Aftermarket systems, on the other hand, are engineered with performance as a primary goal. They typically use larger diameter piping and less restrictive mufflers and catalytic converters. This allows exhaust gases to exit the engine more quickly, reducing backpressure. Backpressure is the resistance that exhaust gases encounter as they flow through the system. High backpressure can rob your engine of power by making it work harder to expel the exhaust. By reducing backpressure, an aftermarket exhaust system allows the engine to breathe easier and operate more efficiently, ultimately leading to increased horsepower and torque. The specific gains you'll see will vary depending on the system you choose and other modifications you may have made to your car, but it's not uncommon to see increases of 10-20 horsepower with a good aftermarket exhaust.

• Enhanced Sound: Let's be honest, the sound of your car is a big part of the driving experience. A new exhaust system can transform the way your G35x Sedan sounds, giving it a deeper, more aggressive tone. Whether you're looking for a subtle rumble or a full-on roar, there's an exhaust system out there that can deliver the sound you want.

  The sound difference between a stock exhaust and an aftermarket system can be quite dramatic. Stock exhaust systems are designed to be quiet and unobtrusive, which is great for everyday driving but might leave you wanting more when it comes to excitement. Aftermarket systems, on the other hand, are built to enhance the auditory experience. They often use different muffler designs and materials to create a more aggressive and sporty sound. The type of sound you get will depend on the specific system you choose. Some systems are designed to provide a deep, throaty rumble at low RPMs, while others are tuned for a high-pitched scream at higher RPMs. It's important to listen to sound clips and read reviews to get a sense of what a particular exhaust system will sound like on your car. You might even want to check out some videos on YouTube to hear different systems in action. The goal is to find a system that matches your personal preferences and the overall character you want your G35x Sedan to have. Remember, a great sounding exhaust can make every drive feel more exhilarating!

• Improved Aesthetics: Many aftermarket exhaust systems look as good as they sound. With polished stainless steel tips and sleek designs, a new exhaust can add a touch of style to the rear of your car.

  The visual appeal of an aftermarket exhaust system is often an overlooked benefit, but it can make a significant difference in the overall appearance of your car. The exhaust tips are often the most visible part of the system, and aftermarket options come in a wide variety of styles and finishes. You can choose from polished stainless steel for a classic and sporty look, or opt for something more aggressive like black chrome or even burnt titanium. The shape and size of the tips can also have a big impact on the car's appearance. Some tips are designed to be subtle and understated, while others are large and eye-catching. Beyond the tips, the overall design of the exhaust system can also contribute to the aesthetics. Many aftermarket systems feature mandrel-bent tubing, which not only improves exhaust flow but also looks cleaner and more professional. The quality of the welds and the overall fit and finish can also make a big difference. A well-designed and well-installed exhaust system can really enhance the look of the rear of your car, giving it a more aggressive and performance-oriented appearance. It's a subtle touch, but it can make a big difference in the overall impression your car makes.

• Weight Reduction: Some aftermarket exhaust systems are lighter than the factory system, which can improve your car's handling and fuel economy.

  Weight reduction is a key factor in improving a car's overall performance, and an aftermarket exhaust system can contribute to this in a meaningful way. Stock exhaust systems are often made from heavier materials like mild steel, while aftermarket systems frequently use lighter materials like stainless steel or even titanium. Stainless steel offers a good balance of durability and weight savings, while titanium is the lightest option but also the most expensive. The weight savings from an aftermarket exhaust system can range from a few pounds to over 20 pounds, depending on the materials used and the design of the system. While this might not seem like a huge amount, every pound counts when it comes to performance. Reducing weight improves the car's power-to-weight ratio, which means it will accelerate faster and handle better. It also reduces the amount of energy required to move the car, which can lead to improved fuel economy. In addition to the weight of the materials, the design of the exhaust system can also impact weight. Aftermarket systems often use more efficient routing and fewer bends, which can further reduce weight. By shedding unnecessary weight, an aftermarket exhaust system can contribute to a more responsive and agile driving experience. It's a subtle but significant benefit that can make a noticeable difference in your car's overall performance.

What to Consider When Choosing an Exhaust System

Okay, so you're convinced that upgrading your exhaust is a good idea. Now, let's talk about the factors you need to consider when making your choice:

Exhaust System Types

• Cat-Back Systems: These systems replace everything from the catalytic converters back, including the mid-pipe, muffler, and exhaust tips. They're a popular choice because they offer a good balance of performance, sound, and price.

  Cat-back exhaust systems are a popular upgrade choice for many car enthusiasts, and for good reason. They offer a comprehensive upgrade that can significantly improve your car's performance and sound. As the name suggests, a cat-back system replaces all the components of your exhaust system from the catalytic converters back to the exhaust tips. This typically includes the mid-pipe, muffler, and tailpipes. One of the key advantages of a cat-back system is that it's a relatively straightforward installation. Since it bolts directly onto the existing catalytic converters, you don't have to worry about modifying the front section of your exhaust system or dealing with complex fabrication. This makes it a great option for DIYers who are comfortable with basic mechanical work. From a performance standpoint, cat-back systems offer a noticeable improvement in exhaust flow compared to the stock system. The larger diameter piping and less restrictive mufflers allow exhaust gases to exit the engine more efficiently, which can result in gains in horsepower and torque. The specific gains will vary depending on the system and the car, but it's not uncommon to see increases of 5-15 horsepower. In addition to the performance benefits, cat-back systems also significantly enhance the sound of your car. The aftermarket mufflers are designed to produce a more aggressive and sporty tone, ranging from a deep rumble to a high-pitched growl. The sound can be a major factor in the overall driving experience, and a cat-back system can really transform the way your car sounds. Finally, many cat-back systems also offer aesthetic improvements. The polished stainless steel tips and mandrel-bent tubing can add a touch of style to the rear of your car. Overall, a cat-back exhaust system is a great choice for those looking for a balance of performance, sound, and appearance upgrades.

• Axle-Back Systems: These systems only replace the parts from the rear axle back, typically just the muffler and exhaust tips. They're a more budget-friendly option and primarily focus on improving sound and appearance.

  Axle-back exhaust systems are a great option for those who want to improve the sound and appearance of their car without breaking the bank. As the name suggests, these systems replace the components of your exhaust from the rear axle back, which typically includes the muffler and exhaust tips. This makes them a more budget-friendly option compared to cat-back systems, which replace a larger portion of the exhaust system. The primary focus of an axle-back system is to enhance the sound of your car. The aftermarket mufflers are designed to produce a more aggressive and sporty tone, which can significantly improve the driving experience. While axle-back systems may not offer the same performance gains as cat-back systems, they can still provide a noticeable improvement in sound. The specific sound characteristics will vary depending on the system, ranging from a deep rumble to a higher-pitched growl. It's important to listen to sound clips and read reviews to get a sense of what a particular axle-back system will sound like on your car. In addition to sound, axle-back systems also offer aesthetic improvements. The aftermarket exhaust tips are often made from polished stainless steel and come in a variety of styles, adding a touch of style to the rear of your car. Installation of an axle-back system is typically very straightforward, often requiring only basic hand tools. This makes it a great option for DIYers who are looking for a quick and easy upgrade. Since the system only replaces the components from the axle back, there's no need to modify the front section of the exhaust system or deal with complex fabrication. Overall, an axle-back exhaust system is a great choice for those who prioritize sound and appearance improvements and are looking for a budget-friendly and easy-to-install upgrade.

• Headers: Headers replace the exhaust manifolds, which are the first part of the exhaust system that connects to the engine. They can provide significant performance gains, but they're also more expensive and require more involved installation.

  Headers are a crucial component of your exhaust system, and upgrading them can result in significant performance gains. Headers replace the stock exhaust manifolds, which are the first part of the exhaust system that connects to the engine. The stock exhaust manifolds are often designed with cost and space constraints in mind, which can limit their performance potential. Aftermarket headers, on the other hand, are engineered to optimize exhaust flow and reduce backpressure. This allows exhaust gases to exit the engine more efficiently, resulting in increased horsepower and torque. The design of the headers plays a critical role in their performance. Equal-length headers, for example, are designed to ensure that each exhaust port has the same length of tubing, which promotes even exhaust flow and maximizes performance gains. The diameter of the tubing is also important, as larger diameter tubing can handle higher exhaust flow rates. Headers are typically made from either stainless steel or mild steel. Stainless steel headers are more durable and resistant to corrosion, while mild steel headers are more affordable but may not last as long. Installation of headers is a more involved process compared to cat-back or axle-back systems. It often requires removing other components of the engine and can be time-consuming. It's important to have the right tools and experience before attempting to install headers yourself. In some cases, professional installation may be recommended. In addition to the performance benefits, headers can also change the sound of your car. They often produce a more aggressive and raspy tone, especially when paired with an aftermarket exhaust system. However, it's important to be aware that some headers may not be emissions-legal in all areas. It's crucial to check your local regulations before installing headers. Overall, headers are a great upgrade for those who are serious about maximizing their car's performance. They can provide significant horsepower and torque gains, but they also require more investment and installation effort.

Material

• Stainless Steel: A popular choice for its durability and resistance to corrosion.
• Aluminized Steel: A more budget-friendly option, but not as durable as stainless steel.
• Titanium: The lightest and most expensive option, offering excellent performance and corrosion resistance.

Sound Level

• Aggressive: Loud and attention-grabbing, ideal for those who want a sporty and powerful sound.
• Moderate: A good balance between performance and daily drivability, providing a noticeable but not overwhelming sound.
• Mild: A subtle upgrade that enhances the sound without being too loud, perfect for those who want a refined and comfortable driving experience.

Budget

Exhaust systems can range in price from a few hundred dollars to over a thousand, so it's important to set a budget before you start shopping.

Top Exhaust System Brands for the 2008 Infiniti G35x Sedan

Here are some of the top brands known for producing high-quality exhaust systems for the G35x Sedan:

• Invidia: Known for their high-performance systems and aggressive sound.
• MagnaFlow: Offers a wide range of systems with a focus on quality and performance.
• Borla: Renowned for their premium materials and exceptional sound.
• Stillen: Specializes in performance parts for Nissan and Infiniti vehicles.

Installation

Installation can range from a simple bolt-on process for axle-back systems to a more complex job for cat-back systems and headers. If you're not comfortable working on your car, it's best to have a professional install the exhaust system.

Final Thoughts

Upgrading your exhaust system is a fantastic way to enhance the performance, sound, and style of your 2008 Infiniti G35x Sedan. By considering the factors we've discussed, you can find the perfect exhaust system to match your needs and preferences. So go ahead, give your G35x Sedan the upgrade it deserves and enjoy the ride! Remember guys, choosing the best exhaust system for your 2008 Infiniti G35x Sedan is all about balancing your desired sound, performance gains, and budget. Take your time, do your research, and you'll be cruising with a smile in no time!