Upgrading the exhaust system on your 2021 Lexus IS 350 F Sport is a fantastic way to enhance its performance, sound, and overall driving experience. Whether you're aiming for a more aggressive tone, improved horsepower, or simply a fresh new look, there are several options to consider. Let's dive into everything you need to know about exhaust upgrades for this model.

Why Upgrade Your Exhaust System?

Before we get into specific options, it's essential to understand why you might want to upgrade your exhaust system in the first place. The factory exhaust system is designed to meet specific criteria, including noise regulations, emissions standards, and cost considerations. While it does a decent job, it often leaves room for improvement in terms of performance and sound. Here’s a breakdown of the key benefits:

• Enhanced Performance: An aftermarket exhaust system is typically designed to reduce backpressure, allowing the engine to breathe more freely. This can result in noticeable gains in horsepower and torque, especially in the mid-range and top-end.
• Improved Sound: One of the most significant reasons people upgrade their exhaust is to achieve a more aggressive and sporty sound. Whether you prefer a deep rumble or a high-pitched roar, there's an exhaust system out there to match your taste. The 2021 Lexus IS 350 F Sport already has a decent sound, but an upgrade can take it to the next level.
• Aesthetic Appeal: Many aftermarket exhaust systems feature polished stainless steel or titanium tips, which can significantly enhance the visual appeal of your car's rear end. Some systems also offer different tip styles and finishes to customize the look further.
• Weight Reduction: Some aftermarket exhaust systems are made from lighter materials than the factory system, which can help reduce the overall weight of the car. While the weight savings might not be dramatic, every little bit helps improve handling and acceleration.

Types of Exhaust Systems

When it comes to upgrading your exhaust, you'll typically encounter a few different types of systems:

• Axle-Back Systems: These are the most straightforward and cost-effective option. An axle-back system replaces the exhaust components from the rear axle to the exhaust tips. They are relatively easy to install and primarily focus on improving the sound and appearance of the exhaust. Performance gains are usually minimal with axle-back systems. For the 2021 Lexus IS 350 F Sport, this is a great starting point if you're new to exhaust modifications.
• Cat-Back Systems: A cat-back system replaces the exhaust components from the catalytic converters to the exhaust tips. This includes the mid-pipe and muffler. Cat-back systems offer a better balance of performance and sound improvements compared to axle-back systems. They can provide a noticeable increase in horsepower and torque, along with a more aggressive exhaust note. These systems are a popular choice for the 2021 Lexus IS 350 F Sport.
• Header-Back Systems (Full Exhaust Systems): These are the most comprehensive and expensive option. A header-back system replaces the entire exhaust system, from the exhaust manifold (headers) to the exhaust tips. This includes the headers, catalytic converters, mid-pipe, and muffler. Header-back systems offer the most significant performance gains and the most dramatic change in exhaust sound. However, they are also the most labor-intensive to install and may require additional modifications to ensure proper fitment and performance. Be sure to research thoroughly before opting for a full exhaust system on your 2021 Lexus IS 350 F Sport.

Popular Exhaust Brands for the 2021 Lexus IS 350 F Sport

Several reputable brands offer high-quality exhaust systems for the 2021 Lexus IS 350 F Sport. Here are a few of the most popular:

• Invidia: Known for their high-quality construction and aggressive sound, Invidia exhaust systems are a popular choice among enthusiasts. They offer both cat-back and axle-back systems for the IS 350 F Sport.
• Tanabe: Tanabe exhaust systems are known for their refined sound and high-quality materials. They offer a range of options, from mild to aggressive, to suit different preferences. The systems are designed for optimal performance and durability.
• Magnaflow: Magnaflow is a well-known brand in the exhaust industry, offering a wide range of systems for various vehicles. Their exhaust systems are known for their smooth, deep sound and high-flow design. Magnaflow offers both cat-back and axle-back systems for the 2021 Lexus IS 350 F Sport.
• Borla: Borla exhaust systems are known for their aggressive sound and performance gains. They offer a variety of options, from mild to wild, to suit different driving styles. Borla systems are made from high-quality stainless steel for durability and longevity.
• AWE Tuning: AWE Tuning exhaust systems are known for their exceptional quality and performance. They offer a range of options for the IS 350 F Sport, including cat-back and axle-back systems. AWE Tuning systems are designed to provide optimal performance and a refined exhaust note.

Factors to Consider When Choosing an Exhaust System

Choosing the right exhaust system for your 2021 Lexus IS 350 F Sport involves considering several factors. Here are some key things to keep in mind:

• Sound Level: Consider how loud you want your exhaust to be. Some systems are designed for a subtle increase in sound, while others are much more aggressive. Listen to sound clips and read reviews to get an idea of the sound level before making a purchase.
• Performance Goals: Determine what you want to achieve in terms of performance. If you're primarily looking for improved sound, an axle-back system might be sufficient. If you want to maximize horsepower and torque, a cat-back or header-back system would be a better choice.
• Budget: Exhaust systems can range in price from a few hundred dollars to several thousand dollars. Set a budget before you start shopping to narrow down your options. Remember to factor in the cost of installation as well.
• Installation: Consider whether you want to install the exhaust system yourself or have a professional do it. Axle-back systems are typically easier to install than cat-back or header-back systems. If you're not comfortable working on your car, it's best to have a professional handle the installation.
• Material and Build Quality: Look for exhaust systems made from high-quality materials like stainless steel or titanium. These materials are more durable and resistant to corrosion. Also, check the build quality of the system to ensure it will last for years to come.

Installation Tips

If you decide to install the exhaust system yourself, here are a few tips to keep in mind:

• Gather the Right Tools: Make sure you have all the necessary tools before you start. This may include wrenches, sockets, a torque wrench, and a jack and jack stands.
• Read the Instructions: Carefully read the installation instructions before you begin. This will help you understand the process and avoid any mistakes.
• Use Penetrating Oil: Spray penetrating oil on any rusty bolts or connections to make them easier to remove.
• Torque to Spec: Use a torque wrench to tighten all bolts to the manufacturer's specifications. This will ensure a secure and leak-free installation.
• Check for Leaks: After installation, start the car and check for any exhaust leaks. If you find any leaks, tighten the connections until the leaks are resolved.

Maintaining Your Upgraded Exhaust System

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

• Regular Cleaning: Clean the exhaust tips regularly to remove dirt and grime. Use a mild soap and water solution and a soft cloth to avoid scratching the finish.
• Inspect for Damage: Periodically inspect the exhaust system for any signs of damage, such as rust, cracks, or leaks. Address any issues promptly to prevent further damage.
• Check Connections: Regularly check the exhaust connections to ensure they are tight and secure. Loose connections can cause leaks and reduce performance.
• Avoid Harsh Chemicals: Avoid using harsh chemicals or abrasive cleaners on the exhaust system, as they can damage the finish.

Conclusion

Upgrading the exhaust system on your 2021 Lexus IS 350 F Sport is a worthwhile investment that can enhance its performance, sound, and appearance. Whether you choose an axle-back, cat-back, or header-back system, there are plenty of options to suit your preferences and budget. By considering the factors outlined in this guide and following the installation and maintenance tips, you can enjoy the benefits of your new exhaust system for years to come. So go ahead, give your IS 350 F Sport the exhaust upgrade it deserves and experience the thrill of a more powerful and better-sounding ride!

Remember to always consult with a professional mechanic or exhaust specialist if you have any questions or concerns about upgrading your exhaust system. They can provide valuable advice and ensure that the installation is done correctly and safely. Happy driving!