Hey guys, let's talk about giving your 2019 Subaru Impreza Sedan a serious upgrade – its exhaust system! You know, that often-overlooked part that can totally transform how your car looks, sounds, and even performs. If you're looking to ditch that stock, quiet rumble for something with a bit more character, or even squeeze a little more power out of your Impreza, then upgrading the exhaust is where it's at. We're talking about more than just a pipe; we're diving into the world of aftermarket exhausts that can bring a whole new level of excitement to your daily drive. Whether you're a performance enthusiast looking for every last bit of horsepower, or just someone who wants their car to sound as good as it looks, a new exhaust system for your 2019 Impreza Sedan is a fantastic investment. It's a way to personalize your ride and make it truly yours. Think about the open road, the satisfying growl as you accelerate, the heads turning – it's all possible with the right exhaust. We'll explore the different types of systems, what to look for, and how they can benefit your beloved Subaru.

Understanding Your Subaru Impreza Sedan's Exhaust System

So, what exactly is an exhaust system, and why would you even want to mess with the one on your 2019 Subaru Impreza Sedan? At its core, the exhaust system's primary job is to safely channel harmful gases produced during combustion away from the engine and out of your car. It’s a complex network of pipes, catalytic converters, mufflers, and resonators. The catalytic converter is crucial for emissions control, breaking down pollutants into less harmful substances. The muffler is responsible for reducing the noise from the engine’s explosions, and resonators help fine-tune the exhaust note, eliminating any particularly annoying frequencies. When you think about upgrading, you're essentially looking at ways to improve the flow of these gases, reduce backpressure, and enhance the sound. A stock exhaust is designed for quiet operation and efficiency, often prioritizing comfort over performance. Aftermarket systems, on the other hand, are built with different priorities. They might use larger diameter piping to allow gases to flow more freely, high-flow catalytic converters that are less restrictive, or performance mufflers and resonators designed to produce a more aggressive and pleasing sound. It’s this careful engineering that allows you to gain not only a better sound but potentially a noticeable bump in horsepower and torque, especially when combined with other modifications. Think of it as unshackling your engine, letting it breathe easier and perform at its peak potential. We'll dive deeper into how each component plays a role and what specific changes you can make to achieve your desired results.

Types of Exhaust Systems for Your Impreza

When you're ready to upgrade the exhaust on your 2019 Subaru Impreza Sedan, you'll encounter a few different types of systems, each offering a unique set of benefits. Understanding these will help you choose the best fit for your needs and budget. The most common upgrade is a cat-back exhaust system. This is typically what most people refer to when they talk about an exhaust upgrade. It replaces everything from the catalytic converter back to the tailpipe. This includes the mid-pipe, muffler, and resonators, often with larger diameter piping and a performance-oriented muffler. Cat-back systems are popular because they offer a significant improvement in sound and a moderate gain in performance without interfering with emissions control systems, making them generally legal in most areas. Next up, we have axle-back exhaust systems. These are usually the most affordable and easiest to install. They simply replace the muffler and tips at the very end of your stock exhaust. While they won't give you a huge performance boost, they are excellent for altering the sound of your Impreza, giving it a sportier tone without being overly loud. If you're on a tight budget and just want to improve the exhaust note, an axle-back is a great starting point. For the serious performance enthusiasts, there's the full turbo-back system (or header-back if you're naturally aspirated). This is the most comprehensive upgrade, replacing the exhaust manifold (or turbo downpipe), catalytic converter, and everything downstream. These systems offer the greatest potential for performance gains because they remove the most restrictive factory components. However, they are also the most expensive, can be more complex to install, and may have implications for emissions compliance depending on your local laws. It's crucial to ensure any full system you consider is emissions-legal in your region. Each of these options allows you to tailor the sound and performance of your 2019 Impreza Sedan to your exact preferences, so weigh your options carefully! Choosing the right type of system is the first big step in personalizing your ride.

Cat-Back Exhausts: The Sweet Spot for Sound and Performance

Let's zoom in on the cat-back exhaust system for your 2019 Subaru Impreza Sedan, because honestly, guys, this is where most people find that perfect balance between getting a killer sound and a noticeable performance improvement without breaking the bank or causing legal headaches. A cat-back system essentially replaces your factory exhaust from the catalytic converter all the way to the tailpipe. This means you're upgrading the mid-pipe, the muffler, and often the resonators. Why is this the sweet spot? Well, the factory muffler and pipes can be quite restrictive. They're designed with noise reduction and durability as top priorities, which often means sacrificing some airflow. By switching to a performance cat-back, you’re getting smoother, often larger diameter piping that allows exhaust gases to exit the engine more efficiently. This reduction in backpressure means your engine doesn't have to work as hard to push those gases out, which can translate into a slight, but welcome, increase in horsepower and torque. But let's be real, for a lot of us, the biggest draw of a cat-back is the sound. Factory exhausts are notoriously quiet. A good cat-back system will give your Impreza a deeper, sportier, more aggressive tone. Imagine hearing that satisfying growl when you step on the gas, or a nice, controlled rumble during a relaxed cruise – it totally changes the driving experience. Many aftermarket brands offer different muffler designs, allowing you to choose just how loud and aggressive you want your Impreza to sound. Some are designed for a deep, mellow tone, while others aim for a more raw, race-inspired bark. Installation is usually straightforward, and because you're not messing with the catalytic converter, these systems are generally emissions-legal and won't cause issues during smog checks. For a significant upgrade in both the auditory pleasure and the overall feel of your 2019 Impreza Sedan, a cat-back exhaust is tough to beat. It’s a fantastic way to make your daily driver feel a bit more special every time you turn the key.

Axle-Back Exhausts: An Easy Sound Upgrade

For those of you looking for a quick and budget-friendly way to inject some personality into your 2019 Subaru Impreza Sedan, the axle-back exhaust system is your go-to option. Think of this as the most minimalist approach to an exhaust upgrade. What does it do? It simply replaces the muffler and the exhaust tips at the very end of your stock system. That's it! The rest of your exhaust, including the mid-pipe and catalytic converter, remains untouched. Because of this, you won't see any significant gains in horsepower or torque. Your engine's breathing ability isn't really being improved here. However, where the axle-back truly shines is in its ability to change the sound of your exhaust. The muffler is the primary component responsible for quieting down the engine's noise, so replacing it with a performance muffler is the most direct way to achieve a sportier exhaust note. You can expect a deeper tone, a bit more volume, and that satisfying rumble that makes driving more enjoyable. It's perfect for guys who want their Impreza to sound a little more spirited without going overboard or making it too loud for daily driving. Installation is usually a breeze – often just a few bolts and hangers. This makes it a great DIY project for beginners. Plus, since you're not altering any emissions control components, axle-back systems are almost always emissions-legal and won't cause problems during inspections. If your main goal is to enhance the sound of your 2019 Impreza Sedan and add a touch of sportiness without a big investment, an axle-back exhaust is a brilliant choice. It's a simple modification that delivers a surprisingly satisfying auditory experience, making your everyday drives a lot more engaging.

Full Turbo-Back/Header-Back Systems: Maximum Performance Potential

Alright, let's talk about the big guns: full turbo-back exhaust systems for your 2019 Subaru Impreza Sedan. If you're the type of driver who's chasing every last bit of performance, looking to maximize horsepower and torque, and isn't afraid of a more involved modification, then this is where you should be looking. These systems represent the most comprehensive exhaust upgrade available. They typically replace everything from the exhaust manifold (which bolts directly to the engine) or the turbocharger's downpipe, all the way back to the tailpipe. This includes the manifold/downpipe, the catalytic converter (often replaced with a high-flow or 'catless' version, depending on legality and your goals), the mid-pipe, and the muffler. The huge advantage of a full system is the drastic reduction in exhaust restriction. By using larger diameter pipes, smoother bends, and less restrictive (or no) catalytic converters, exhaust gases can escape the engine far more quickly and efficiently. This significantly reduces backpressure, allowing your engine to breathe much better and thus produce more power. For turbocharged cars like many Subarus, a good downpipe and freer-flowing exhaust are critical for turbo spool-up and overall performance. However, it's not all sunshine and rainbows. These systems are usually the most expensive. Installation can be more complex, sometimes requiring specialized tools or knowledge. Critically, modifying or removing the catalytic converter can have significant legal implications regarding emissions regulations and may render your vehicle illegal for road use in many regions. Always, always check your local laws and ensure you're choosing an emissions-compliant setup if you plan on registering and driving your car legally. For those who are building a dedicated track car or live in an area with lax emissions laws, a full turbo-back system offers the ultimate pathway to unlocking your 2019 Impreza Sedan's performance potential. It's a serious modification for serious enthusiasts.

Key Considerations When Choosing Your Impreza Exhaust

So, you're pumped about getting a new exhaust for your 2019 Subaru Impreza Sedan, but before you hit that 'buy' button, let's cover some crucial points to make sure you make the best choice. It's not just about picking the one that looks coolest or sounds the loudest; there's a bit more nuance involved, guys. First off, sound level and tone are paramount. What sounds amazing to one person might be annoying drone to another, especially on longer highway drives. Manufacturers often provide sound clips or decibel ratings, but nothing beats hearing it in person or reading reviews from owners with similar cars. Think about your daily commute – do you want a subtle growl or a full-on roar? Next, consider material and construction. Most quality aftermarket exhausts are made from stainless steel, which offers excellent corrosion resistance and durability. Look for TIG-welded seams for strength and polished or coated tips for aesthetics. Cheaper options might use aluminized steel, which will rust much faster. Then there's performance gains. While a full system will offer the most, even a good cat-back can provide a modest improvement. If power is a major goal, research systems specifically designed for performance, often featuring larger pipe diameters and high-flow mufflers. Don't expect miracles from just an exhaust, but combined with other mods, it's a solid piece of the puzzle. Another critical factor is legality and emissions. As we touched on with full systems, altering or removing your catalytic converter is a big no-no in many places and will cause you to fail emissions tests. Always ensure the system you choose complies with local regulations. Finally, think about brand reputation and warranty. Established brands often have better quality control, better customer support, and offer warranties on their products, giving you peace of mind. Choosing an exhaust is a personal journey, and weighing these factors will help you find the perfect match for your 2019 Impreza Sedan.

Material Matters: Stainless Steel vs. Aluminized Steel

When you're diving into the world of exhaust systems for your 2019 Subaru Impreza Sedan, one of the most important, yet often overlooked, details is the material it's made from. This isn't just about how it looks; it's about how long it'll last and how well it holds up to the elements. The two main players you'll encounter are stainless steel and aluminized steel. Let's break it down. Stainless steel is the premium choice, and for good reason. It's an alloy containing chromium and nickel, which gives it incredible resistance to rust and corrosion. This is huge because your exhaust system is constantly exposed to moisture, road salt, dirt, and high temperatures. Stainless steel exhausts, especially those made from higher grades like 304 stainless, will last for many, many years, often outliving the car itself. They tend to have a brighter, more polished finish initially and maintain their appearance better over time. On the flip side, aluminized steel is a more budget-friendly option. It's essentially regular steel that has been coated with aluminum. This coating provides a decent level of corrosion resistance, but it's nowhere near as robust as stainless steel. Over time, especially in harsh climates, the aluminum coating can wear away, exposing the underlying steel to rust. Aluminized systems might be cheaper upfront, but you'll likely have to replace them sooner. If you live in an area with salty winters or high humidity, investing in a stainless steel exhaust for your 2019 Impreza Sedan is almost always the smarter long-term play. It might cost more initially, but the longevity and peace of mind are well worth it. Think of it as buying a quality tool that will serve you reliably for years to come, rather than a cheap one that will need replacing.

Tip Designs and Aesthetics: Making Your Impreza Stand Out

Alright guys, let's talk about the flashy part – the exhaust tips! While they might seem purely aesthetic, the design and finish of your exhaust tips can dramatically change the overall look of your 2019 Subaru Impreza Sedan. It's the final flourish, the signature touch that really makes your car stand out from the crowd. You've got a variety of options to play with here. The most basic are straight-cut tips, which offer a clean, no-nonsense look. Rolled tips, where the edge of the pipe is curved inwards, give a slightly more finished and premium appearance. Then there are angle-cut tips, which can add a sportier, more aggressive vibe. Beyond the shape, the finish is key. You'll commonly find polished stainless steel tips, which offer a brilliant, mirror-like shine that looks fantastic. Burnt titanium tips, characterized by their iridescent blue and purple hues, are a popular choice for enthusiasts seeking a more exotic and high-performance look. Ceramic black tips offer a stealthy, understated, and aggressive appearance that pairs well with darker paint schemes. Some systems even offer carbon fiber tips, which are lightweight and provide a modern, race-inspired aesthetic. When choosing, consider the overall style of your Impreza. Do you want something subtle and elegant, or bold and sporty? The size of the tip also matters – a larger tip can make a statement, while a smaller one might look more OEM+. Many cat-back and axle-back systems come with specific tip designs, but you can often purchase tips separately to customize your existing setup. The right exhaust tip isn't just about looks; it's about complementing the personality you want to give your 2019 Subaru Impreza Sedan. It's the exclamation point on your car's rear-end, so choose wisely to make sure it screams you!

The Drone Factor: Finding the Right Balance

One of the most critical, and sometimes tricky, aspects of choosing an aftermarket exhaust system for your 2019 Subaru Impreza Sedan is managing drone. Drone refers to that unpleasant, resonant, low-frequency humming sound that can occur at specific RPM ranges, usually during highway cruising. While you want your exhaust to sound aggressive and sporty when you want it to, you probably don't want to be subjected to a headache-inducing hum for hours on end during your daily commute. This is where the muffler and resonator design play a HUGE role. Performance mufflers are designed to reduce engine noise, but they do so in different ways. Some use packing material, others use baffling, and some employ chambered designs. Each approach affects the sound differently and can either mitigate or exacerbate drone. Resonators also help tune the exhaust note and can cancel out specific frequencies that cause drone. When looking at exhaust systems, pay close attention to reviews and manufacturer descriptions regarding drone. Some systems are specifically engineered to minimize or eliminate it, often using a combination of a well-designed muffler and a strategically placed resonator. Others might be more focused on raw sound and might produce noticeable drone. For daily drivers, especially those who spend a lot of time on the highway, minimizing drone is usually a top priority. Finding an exhaust that delivers the aggressive sound you desire during acceleration while remaining civilized and drone-free during cruising is the ultimate goal for many 2019 Impreza Sedan owners. It's about achieving that perfect balance where performance meets comfort, ensuring your car sounds exciting without becoming fatiguing.

Installation and Maintenance Tips

So you've picked out the perfect exhaust system for your 2019 Subaru Impreza Sedan, awesome! Now comes the part where you get to enjoy the fruits of your labor. Installation can range from a relatively simple DIY job to something that might require professional help, depending on the type of system you bought and your mechanical skills. For axle-back and most cat-back systems, you're often looking at unbolting the old system and bolting on the new one. This usually involves getting under the car, having some basic tools (like wrenches, sockets, and possibly a breaker bar), and maybe some penetrating oil to loosen stubborn bolts. Safety first, guys – always use jack stands if you're lifting the car; never rely on just a jack! If you're going for a full turbo-back system, especially if it involves replacing the manifold or dealing with turbo components, it can get significantly more complex and is often best left to a professional shop experienced with Subarus. Once installed, maintenance is generally pretty minimal. Keep an eye on the exhaust tips for any signs of rust or damage, especially if you opted for a specific finish. Occasionally check the hangers and clamps to ensure everything is secure and not rattling. If you live in an area with harsh winters and road salt, washing your car regularly, paying attention to the underside, can help prolong the life of any metal component, including your exhaust. Proper installation and basic upkeep will ensure your new exhaust system for the 2019 Impreza Sedan performs beautifully and lasts for years to come. Don't be afraid to consult online forums or local Subaru communities for specific installation tips for your model year!

DIY vs. Professional Installation

Deciding between doing the exhaust installation yourself or taking it to a professional for your 2019 Subaru Impreza Sedan is a big decision, and it really boils down to a few key factors: your skill level, the complexity of the system, and the tools you have available. For simpler upgrades like an axle-back exhaust, many enthusiasts find it to be a very manageable DIY project. Typically, it involves a few bolts holding the muffler in place, some hangers to release, and then bolting the new unit on. You can often do this in your driveway with a basic set of tools and maybe a little help from a friend. A cat-back system is often also doable for the DIYer, though it might be a bit more involved as you're dealing with more piping sections. The main challenges can be rusted bolts and exhaust clamps, which can be a real pain to get loose. If you're comfortable working under your car and have the right tools, it's definitely achievable. However, for full turbo-back systems, especially those involving turbo replacement or modifications, or if you're not confident in your mechanical abilities, professional installation is highly recommended. These jobs can be intricate, require specialized tools (like lifts, torque wrenches set to specific specs, and potentially welding equipment), and mistakes can be costly or even dangerous. Shops specializing in performance vehicles or Subarus will have the expertise to ensure the system is installed correctly, leak-free, and safely. Plus, many performance exhaust manufacturers offer warranties that might be voided if the system isn't installed by a certified professional. Ultimately, assess your own capabilities honestly. If you’re unsure, spending a bit more on professional installation for your 2019 Impreza Sedan’s exhaust will save you headaches and potential problems down the road.

Maintaining Your New Exhaust System

Once you've got that sweet new exhaust system fitted to your 2019 Subaru Impreza Sedan, you'll want to keep it looking and performing its best. Thankfully, exhaust systems are generally pretty low-maintenance, but a little attention goes a long way. The biggest thing to watch out for, especially with fancier finishes or if you live in a rust-prone area, is corrosion. If you have polished stainless steel tips, giving them a quick wipe-down with a microfiber cloth and some stainless steel polish every now and then will keep them gleaming. For burnt titanium or black ceramic tips, a gentle cleaner is usually sufficient; avoid abrasive materials that could scratch the finish. The most important maintenance, particularly for longevity in harsh climates, is regular cleaning of the underside of your car. Road salt, mud, and grime can accelerate rust and corrosion on any metal component, including your exhaust pipes. A good rinse after driving through salty conditions can make a big difference. Periodically, it's also wise to check that all hangers and clamps are snug. Listen for any new rattles or unusual noises, which could indicate a loose connection or a failing hanger. Most modern exhaust systems are designed for long life, but a little proactive care will ensure your 2019 Impreza Sedan's exhaust system continues to sound and look great for many miles to come. It’s about preserving your investment and keeping that custom look sharp!

Conclusion: Unleash Your Impreza's Potential

So there you have it, guys! Upgrading the exhaust system on your 2019 Subaru Impreza Sedan is one of the most rewarding modifications you can make. Whether you're seeking a more aggressive sound to match the sporty nature of your Impreza, aiming for modest performance gains, or just want to inject a bit more excitement into your daily drives, there's an exhaust solution out there for you. From the simple and affordable axle-back systems that enhance your sound, to the balanced cat-back systems that offer a great mix of tone and performance, all the way to the power-hungry full turbo-back systems for maximum output, the choices are vast. Remember to consider material quality, tip aesthetics, and crucially, the potential for drone to ensure you get a system that perfectly suits your driving style and needs. Investing in a quality exhaust system for your 2019 Subaru Impreza Sedan isn't just about changing a part; it's about transforming your driving experience. It’s about making your car feel more alive, more responsive, and distinctly yours. So go ahead, explore your options, do your research, and get ready to hear your Impreza sing a new, more exhilarating tune!