Hey guys! So, you're rolling around in a sleek 2016 Lexus IS350, and you're thinking about taking it up a notch. Awesome choice! One of the best ways to inject some serious personality and performance into your ride is by upgrading the cat-back exhaust system. In this guide, we'll dive deep into everything you need to know about cat-back exhausts for your IS350, from the benefits to the best options on the market. We'll also cover installation tips and what kind of sound you can expect. Buckle up, because we're about to make your Lexus sing!

Why Upgrade Your 2016 Lexus IS350 Cat-Back Exhaust?

So, why bother with a cat-back exhaust in the first place? Well, the stock exhaust system on your 2016 Lexus IS350, while perfectly functional, is designed for a balance of performance, noise reduction, and emissions compliance. It's built to satisfy a wide range of drivers, which means it might be a bit tame for those of us who crave something more. Upgrading to a cat-back system can offer some seriously cool benefits, including:

• Increased Horsepower and Torque: The primary reason most people upgrade their exhaust is to squeeze out extra power. A well-designed cat-back system reduces backpressure, allowing the engine to breathe easier. This can lead to noticeable gains in horsepower and torque, especially in the mid-range. While you might not see a massive jump in numbers (think a few to several horsepower), every little bit helps, and you'll definitely feel the difference when you hit the gas.
• Enhanced Sound: This is where the fun really begins! The stock exhaust is designed to be quiet, which is great for a luxury car, but not so great if you want to make a statement. A cat-back exhaust lets your IS350 unleash its inner beast. You can choose from a range of sounds, from a subtle, sporty growl to a head-turning roar. This is all about personal preference, so consider what kind of sound you're after.
• Improved Aesthetics: Let's face it, the stock exhaust tips aren't always the most eye-catching. Many cat-back systems come with upgraded tips that give your IS350 a more aggressive and stylish look. This is a subtle but effective way to make your car stand out from the crowd.
• Better Fuel Efficiency: Believe it or not, a more efficient exhaust system can sometimes improve fuel economy. By reducing backpressure and helping the engine breathe more freely, you can potentially see a slight increase in miles per gallon. However, don't expect a huge difference – the primary benefits are usually in power and sound.
• Reduced Weight: Some aftermarket cat-back systems are lighter than the stock system. While the weight savings might not be massive, every little bit helps, and it can contribute to improved handling and acceleration. The overall improvement from these upgrades is undeniable. For those seeking that extra edge in performance, a cat-back exhaust system is a go-to modification. In essence, it does not only change the sound of your IS350 but also enhances its driving dynamics and aesthetic appeal. When you are behind the wheel, you'll feel more connected to the car. Your Lexus will feel even more responsive, eager to unleash its power at your command. It's not just a mod; it's a transformation. A well-chosen cat-back exhaust can truly elevate the driving experience.

Top Cat-Back Exhaust Options for Your 2016 Lexus IS350

Alright, let's get into some of the best cat-back exhaust options available for your 2016 Lexus IS350. There are a ton of brands out there, each with its own unique features and sound profile. Here are a few of the most popular and well-regarded options:

• Invidia Q300: The Invidia Q300 is a favorite among IS350 owners for its balance of performance, sound, and build quality. It delivers a deep, throaty sound without being overly loud, making it perfect for daily driving. The Q300 is known for its high-quality stainless steel construction, which ensures durability and longevity. It typically offers a noticeable increase in horsepower and torque. If you are looking for a reliable, and well-performing cat-back system, the Invidia Q300 is a fantastic choice.
• Borla Cat-Back: Borla is a legendary name in the exhaust world, and their cat-back systems for the IS350 are no exception. Borla exhausts are known for their aggressive sound and high-quality construction. They often provide significant performance gains, thanks to their mandrel-bent tubing and high-flow mufflers. Borla offers various sound levels, from mild to wild, so you can choose the one that best suits your preferences. The Borla cat-back exhaust is an excellent choice for those seeking top-tier performance and sound.
• Magnaflow: Magnaflow is another popular brand, known for its affordable yet high-quality exhaust systems. Magnaflow cat-back systems for the IS350 offer a great balance of performance and sound. They usually have a moderate sound level, making them suitable for daily driving while still providing a sporty note. Magnaflow systems are typically made from stainless steel and offer a good value for the price. If you want a significant upgrade without breaking the bank, the Magnaflow cat-back is a great pick.
• Tanabe Medallion Touring: If you are after a more refined and subtle sound, the Tanabe Medallion Touring is a great option. It offers a slightly louder sound than stock, with a focus on a smooth, deep tone. Tanabe systems are known for their high-quality construction and excellent fit and finish. While the performance gains might not be as significant as some other options, the Tanabe Medallion Touring is a great choice if you are looking for a more sophisticated sound.

When choosing a cat-back exhaust, make sure to read reviews, listen to sound clips, and consider your budget. Also, pay attention to the materials used (stainless steel is best for longevity) and the overall build quality. The exhaust you select will really transform your car and make it unique, so pick the system that has the sound and features that suit your personality.

Installing Your 2016 Lexus IS350 Cat-Back Exhaust: What You Need to Know

Installing a cat-back exhaust on your 2016 Lexus IS350 is a fairly straightforward process, even for a DIY enthusiast. However, it's always a good idea to have some basic mechanical skills and the right tools. Here's a general overview of the installation process:

• Gather Your Tools: You'll need a few essential tools, including:
  • Jack and jack stands (for safely lifting the car)
  • Wrench set (metric)
  • Socket set (metric)
  • Penetrating oil (to help loosen stubborn bolts)
  • Safety glasses and gloves
• Preparation: Before you start, make sure your car is parked on a level surface and the engine is cool. Disconnect the negative battery terminal to prevent any electrical issues.
• Raising the Car: Safely lift your IS350 using a jack and secure it with jack stands. Make sure the car is stable before you start working underneath it.
• Removing the Old Exhaust: This is usually the trickiest part. Start by spraying penetrating oil on all the bolts and connections. Then, carefully unbolt the stock exhaust system, working from the back to the front. You might need to use a breaker bar or impact wrench to loosen stubborn bolts. Be mindful of any sensors or wiring attached to the exhaust.
• Installing the New Exhaust: Once the old exhaust is removed, it's time to install the new one. Follow the manufacturer's instructions carefully. Typically, you'll start by connecting the new exhaust to the existing catalytic converters and then working your way back. Make sure all connections are tight and secure. Double-check everything to be sure nothing is rubbing against the chassis or any other parts.
• Lowering the Car and Finishing Up: Once the new exhaust is installed, lower the car and reconnect the battery. Start the engine and check for any leaks or unusual noises. Give it a few revs to make sure everything sounds and performs as expected. If everything looks good, you're done!

Important Safety Considerations:

• Always wear safety glasses and gloves to protect yourself.
• Never work under a car supported only by a jack. Always use jack stands.
• Be careful when handling hot exhaust components. Allow the exhaust to cool before touching it.
• If you're not comfortable with any part of the installation process, it's always best to consult a professional mechanic.

Sound Check: What to Expect from Your New Cat-Back Exhaust

One of the most exciting parts of upgrading your cat-back exhaust is the new sound! The sound profile of your IS350 will change significantly. You can expect a deeper, more aggressive tone compared to the stock exhaust. The exact sound will depend on the brand, muffler design, and overall system configuration. Here are some general sound characteristics to expect:

• Deep and Resonant: Most cat-back systems will produce a deeper, more resonant sound, especially at lower RPMs. This gives the car a more powerful and sporty feel. You'll likely notice the difference when you're cruising on the highway, with a more noticeable rumble than the stock exhaust. This deeper sound adds a layer of character to the car.
• Increased Volume: The volume will generally increase, but how much depends on the specific exhaust. Some systems are designed to be louder, while others focus on a more subtle increase. If you are after a head-turning roar, look for systems with less baffling or a straight-through design. If you want a more refined sound, consider systems with more muffling.
• Sporty Growl: As you accelerate, you can expect to hear a sporty growl, especially as the engine reaches higher RPMs. This adds to the overall driving experience, making the car feel more alive and responsive. The growl will let others know you mean business. The aggressive sound is often a favorite among car enthusiasts.
• Elimination of Drone: Drone is a low-frequency hum that can sometimes occur with aftermarket exhausts. A good cat-back system is designed to minimize drone, ensuring a pleasant driving experience. When researching systems, look for reviews that mention drone or lack thereof. Choose an exhaust system that offers a nice balance between sound and comfort for daily use.
• Burbling and Popping (Optional): Some exhausts, particularly those with less restrictive designs, may produce burbling and popping sounds on deceleration. This is more common with high-performance systems and adds a touch of excitement to the driving experience. Be aware that this can sometimes be interpreted as aggressive, so consider your preferences and local regulations.

Maintaining Your 2016 Lexus IS350 Cat-Back Exhaust

Maintaining your cat-back exhaust is relatively easy, but it will help keep it looking and sounding its best for years to come. Here are a few tips:

• Regular Inspections: Periodically inspect your exhaust system for any signs of damage, leaks, or rust. Check the welds, connections, and hangers.
• Cleaning: Clean the exhaust tips regularly to remove any soot or dirt buildup. Use a chrome or stainless steel cleaner, depending on the material.
• Rust Prevention: If you live in an area with harsh winters or high humidity, consider applying a rust preventative coating to the exhaust system. This will help protect it from corrosion.
• Torque Check: After a few hundred miles of driving, re-check all the bolts and connections to ensure they are still tight. This will help prevent any leaks or vibrations.
• Sound Check: After a few weeks or months, reassess the sound and performance. Ensure everything sounds as it should and that no changes have occurred. Make sure there are no leaks or odd noises.

By following these maintenance tips, you can extend the life of your cat-back exhaust and ensure it continues to enhance the performance and sound of your 2016 Lexus IS350.

Conclusion: Rev Up Your Ride!

Upgrading the cat-back exhaust on your 2016 Lexus IS350 is a fantastic way to boost both performance and style. With a wide range of options available, from the Invidia Q300 to Borla, Magnaflow, and Tanabe, you can choose a system that perfectly suits your sound and performance goals. Remember to research thoroughly, consider your budget, and choose a reputable brand. Whether you're a seasoned gearhead or just starting your customization journey, this is a modification that can make a real difference in the enjoyment of your car. Now get out there, install that new exhaust, and enjoy the sweet sound of your IS350!