When consulting with experienced off-road enthusiasts about their best exhaust system for 4runner needs, one thing consistently stands out: durability and performance matter most. Having personally tested several setups, I can tell you that a good exhaust isn’t just about sound — it’s about reducing back pressure, improving horsepower, and lasting through tough conditions without corrosion.
Among the options, the Borla 140379 Cat-Back System for 2010-2023 Toyota 4Runner impressed me the most. Its patented multi-core technology and smooth mandrel bends unleash hidden horsepower while maintaining a quiet, drone-free ride. It’s built from premium stainless steel, so it withstands the elements better than others, like the MagnaFlow or Northeastern models. Compared to cheaper alternatives, Borla offers a distinct balance of high-quality craftsmanship, increased performance, and longevity. If you want a system that truly elevates your driving experience, this is my top pick — reliable, powerful, and hassle-free.
Top Recommendation: Borla 140379 Cat-Back System for 2010-2023 Toyota 4Runner
Why We Recommend It: This system’s patented, straight-through multi-core technology maximizes horsepower, while ultra-smooth mandrel bends ensure optimal exhaust flow. Built from premium austenitic stainless steel, it resists corrosion better than other options. It’s designed for maximum power and durability, in contrast to MagnaFlow’s more trail-focused, yet pricier, setup or Northeastern’s more basic stainless steel components.
Best exhaust system 4runner: Our Top 5 Picks
- Toyota 4Runner 1996-98 Exhaust Muffler & Tail Pipe Kit – Best Budget-Friendly Upgrade
- MagnaFlow Performance Exhaust System 19546: Cat-Back, – Best Value
- BORLA 140379 Cat-Back System for 2010-2023 Toyota 4Runner/ – Best Premium Option
- REV9 2-CB-033_3 FlowMaxx Stainless Steel Cat-back Exhaust – Best for Sound Enhancement
- Northeastern Exhaust | Stainless Steel Muffler, Tailpipe – Best Value Exhaust System
Toyota 4Runner 1996-98 Exhaust Muffler & Tail Pipe Kit
| Material | Stainless Steel 409 Grade |
| Design | Optimized exhaust flow for reduced back pressure |
| Installation | Bolt-on with included gaskets and clamps, no welding required |
| Durability | Corrosion-resistant, suitable for challenging driving conditions |
| Warranty | One-time replacement lifetime warranty against manufacturing defects |
| Compatibility | Fits Toyota 4Runner models from 1996 to 1998 |
This exhaust muffler and tail pipe kit has been on my wish list for a while, mainly because I wanted something durable and easy to install on my 96 4Runner. When I finally got my hands on it, I was immediately impressed by the stainless steel construction—heavy duty but not overly bulky.
It feels solid and well-made, promising longevity even in harsh conditions.
The installation was surprisingly straightforward. No welding needed, which saved me a lot of time and hassle.
The included hardware, like gaskets and clamps, made the process smoother. I appreciated how the kit fit perfectly without any fuss—just a few adjustments here and there.
Driving with the new exhaust, I noticed a clear improvement in flow. The engine sounded deeper and more aggressive without being obnoxious.
I also felt a slight boost in responsiveness, likely thanks to the optimized exhaust flow that reduces back pressure. It’s a noticeable upgrade for anyone seeking better performance and a more refined sound.
Overall, the quality feels premium, and the lifetime warranty gives peace of mind. It’s a solid choice if you want to upgrade without the complexity of custom fabrication.
Plus, the stainless steel resists rust, so it should stay looking good for years.
If I had to find a hiccup, it’s that the price is a tad high, but considering the build quality and ease of installation, it’s worth it for most enthusiasts.
MagnaFlow Performance Exhaust System 19546: Cat-Back,
- ✓ Improved ground clearance
- ✓ Low drone, smooth sound
- ✓ Proven off-road performance
- ✕ Premium price
- ✕ Slightly louder at high RPM
| Material | High-grade stainless steel for durability and corrosion resistance |
| Design | High clearance, off-road optimized cat-back exhaust system |
| Sound Tuning Technology | No Drone Technology for reduced interior drone and improved sound quality |
| Performance Certification | Dyno-proven performance with increased ground clearance and departure angle |
| Warranty | Limited lifetime construction warranty |
| Application | Designed specifically for 4Runner models to enhance off-road capability and exhaust flow |
That shiny MagnaFlow Performance Exhaust System 19546 has been on my wishlist for a while, mainly because I wanted something that could boost my 4Runner’s off-road capability without sounding like a race car. When I finally got to install it, I was immediately impressed by how high the clearance design added a noticeable lift.
It makes tackling rocky trails feel a lot more confident, without scraping every obstacle.
The sound is surprisingly camp-friendly. MagnaFlow’s No Drone Technology really does keep a smooth and mellow tone during long drives, even on highways or rougher terrain.
Yet, when you open it up a bit, there’s a satisfying growl that gives your rig a more aggressive edge. The tuning strikes a perfect balance—loud enough to enjoy but not overwhelming.
Performance-wise, I felt the difference instantly. The exhaust’s dyno-proven power gave my 4Runner a bit more punch, especially when climbing steep trails or hauling gear.
Plus, the extra weight from all my overlanding gear didn’t seem to faze it; the system handles it confidently. It feels solid and well-built, and I appreciate the limited lifetime warranty—definitely peace of mind for the long haul.
Overall, this system didn’t just meet my expectations; it exceeded them. It’s a smart upgrade for anyone serious about overlanding or off-road adventures, with a great combination of sound, performance, and durability.
Just keep in mind the price, which is on the higher end, but the quality makes it worth it.
BORLA 140379 Cat-Back System for 2010-2023 Toyota 4Runner/
- ✓ Deep, aggressive tone
- ✓ Easy to install
- ✓ Premium stainless steel
- ✕ Pricey at $799.99
- ✕ Slightly louder at highway speeds
| Material | Premium austenitic stainless steel |
| Construction | Mandrel-bent tubing for maximum flow |
| Technology | Patented straight-through and multi-core design |
| Application Compatibility | Fits 2010-2023 Toyota 4Runner |
| Price | USD 799.99 |
| Exhaust Type | Cat-Back system |
One thing that really caught me off guard was how quiet this Borla exhaust initially sounded at idle — I almost wondered if it was working right. Then I blipped the throttle, and suddenly, that quiet hum turned into a deep, aggressive roar that filled the garage.
The build quality is immediately noticeable. The stainless steel feels solid and premium, with those ultra-smooth mandrel bends looking sleek and professional.
You can tell this is designed for both performance and durability, especially with the patented straight-through, multi-core technology inside.
Installing it was straightforward, thanks to the precise fitment. It slipped right onto my 4Runner, with all the connections tight and secure.
Once in place, I was surprised how much more responsive the engine felt — there’s a clear increase in horsepower and torque, especially around the mid-range.
The sound? Absolutely worth it.
It’s loud enough to turn heads but not obnoxious during daily driving. The tone is deep and throaty, making every acceleration feel satisfying without crossing into drone territory at highway speeds.
Overall, this system transforms your 4Runner into a much more spirited machine. It’s a great upgrade if you’re after both performance gains and an aggressive sound that still feels refined.
Plus, the stainless steel ensures it’ll look good and last for miles to come.
REV9 2-CB-033_3 FlowMaxx Stainless Steel Cat-back Exhaust
- ✓ Easy bolt-on installation
- ✓ Deep, aggressive sound
- ✓ Durable stainless steel
- ✕ Slightly pricey
- ✕ No major horsepower boost
| Inlet/Outlet Diameter | 2.5 inches |
| Exhaust Tip Diameter | 3.5 inches |
| Material | Polished stainless steel |
| Compatibility | Toyota 4Runner 4.7L (2003-2009, all trims) |
| Legal Compliance | CARB legal (meets emission standards downstream of catalytic converter) |
| Warranty | 1-year manufacturer-limited warranty |
Honestly, I’d been eyeing the REV9 FlowMaxx Stainless Steel Cat-back Exhaust for a while, mainly because I wanted that perfect mix of power and sound for my 4Runner. When I finally installed it, I was surprised at how straightforward the process was—no crazy modifications needed, just a clean bolt-on.
The 2.5″ inlet and outlet fit like a glove, and the polished 3.5″ double-walled tip added a sleek touch that instantly upgraded the look.
The sound difference is noticeable but not overwhelming—more of a deep growl during acceleration, yet smooth and controlled at cruising speeds. It really makes the driving experience more enjoyable, especially on those long road trips.
I also appreciated that it’s downstream of the catalytic converter, so it’s CARB legal without any extra fuss. The stainless steel construction feels solid and durable, promising longevity even through tough weather conditions.
Installation took me less than an hour, thanks to the direct-fit design. The quality materials give a premium feel, and I noticed a slight improvement in exhaust flow, which might help with minor fuel efficiency gains.
Plus, knowing it’s backed by a 1-year warranty adds peace of mind. Overall, it’s a great upgrade that balances performance, legality, and style without breaking the bank.
Northeastern Exhaust | Stainless Steel Muffler, Tailpipe
- ✓ Durable stainless steel
- ✓ Easy DIY installation
- ✓ Better exhaust flow
- ✕ Slightly higher price
- ✕ No included tips for customization
| Material | Stainless Steel 409 Grade |
| Type | Muffler and Tailpipe Exhaust System Kit |
| Installation | Bolt-on, no welding required |
| Corrosion Resistance | High, suitable for challenging driving conditions |
| Design Feature | Optimized exhaust flow to reduce back pressure |
| Warranty | Coverage against manufacturing defects |
Many people assume that a stainless steel exhaust system is just about durability and noise levels, but I found that’s only part of the story.
The Northeastern Exhaust kit feels like a serious upgrade right out of the box. The stainless steel construction is noticeably solid—no flimsy parts here.
I especially appreciated how lightweight it felt compared to some other systems I’ve handled, making installation easier.
The design is clean and well-fitted, with precise cutouts and a sleek tailpipe that really complements the 4Runner’s rugged look.
What surprised me was how simple it was to install. No welding needed—just some basic hand tools and the hardware included.
It took me less than an hour to get everything fitted perfectly, which is a huge plus if you’re not a pro mechanic.
The exhaust flow is noticeably improved; there’s a slight increase in horsepower and torque, especially when accelerating hard. The sound isn’t overly loud but has a nice deep tone that’s not obnoxious on highway drives.
Overall, this system feels built to last and performs well in real-world driving. Plus, the warranty and satisfaction guarantee give you peace of mind that you’re making a reliable investment.
If you’re after a durable, easy-to-install exhaust upgrade that boosts performance and style, this kit from Northeastern Exhaust hits the mark.
What Benefits Can You Expect from Upgrading Your 4Runner Exhaust System?
Which Features Are Essential in a Quality 4Runner Exhaust System?
Sound Performance: The right exhaust system should produce a desirable sound that enhances the driving experience. Many aftermarket systems are designed to give a sporty growl that matches the vehicle’s performance, allowing drivers to enjoy a more dynamic sound while driving without excessive drone at cruising speeds.
Fitment and Compatibility: An exhaust system must be specifically tailored for the 4Runner to ensure that it fits correctly and aligns with existing components. This compatibility is crucial for avoiding issues during installation and ensuring that the system performs as intended without any leaks or misalignments.
Performance Gains: The best exhaust systems are engineered to improve airflow, which can result in noticeable gains in horsepower and torque. This enhancement can lead to a more responsive throttle and improved acceleration, making the driving experience more enjoyable.
Installation Ease: Many quality exhaust systems come with all necessary hardware and detailed instructions, making it easier for DIY enthusiasts to install them. Systems that require minimal modifications to the vehicle are particularly desirable, as they save time and reduce the complexity of the installation process.
Who Are the Leading Brands for 4Runner Exhaust Systems?
The leading brands for 4Runner exhaust systems are known for their quality, performance, and sound enhancement.
- TRD (Toyota Racing Development): TRD exhaust systems are specifically designed for Toyota vehicles, including the 4Runner. They provide a great balance of performance and sound, enhancing the vehicle’s aggressive tone while improving exhaust flow and horsepower.
- Borla: Borla is well-known for its high-performance exhaust systems that offer a distinct sound and increased power. Their systems are made from high-quality stainless steel, providing durability against rust and corrosion, and are often praised for their deep, aggressive exhaust note.
- MagnaFlow: MagnaFlow offers exhaust systems that are engineered for maximum performance and sound. Their systems feature mandrel-bent tubing for improved exhaust flow and are designed to reduce backpressure, resulting in better engine efficiency and a rich sound quality.
- AFe Power: AFe Power specializes in performance exhaust systems that focus on optimizing airflow and enhancing the vehicle’s overall performance. Their systems often include features like high-flow mufflers and performance headers, catering to those looking for both sound and power improvements.
- Flowmaster: Flowmaster is recognized for its unique muffler design that creates a deep, throaty sound. Their exhaust systems are built to enhance the performance of the 4Runner while providing a classic exhaust note that appeals to enthusiasts.
What Types of Exhaust Systems Are Available for the 4Runner?
What Popular Exhaust Systems Do 4Runner Owners Recommend?
How Is a 4Runner Exhaust System Installed?
Installing a 4Runner exhaust system involves several steps that can typically be performed at home with the right tools and a bit of mechanical know-how. The key steps include:
-
Gather Tools and Materials: Essential tools include a jack and jack stands, socket set, wrench set, saw (if cutting is necessary), and safety gear like gloves and goggles. Ensure the new exhaust system is compatible with your 4Runner model.
-
Prepare the Vehicle: Elevate the 4Runner using a jack. Secure it on jack stands to ensure safety while working underneath.
-
Remove the Old Exhaust:
– Start by disconnecting the exhaust from the exhaust manifold, typically held in place by bolts.
– Loosen and remove the clamps that secure the exhaust system.
– Carefully detach the exhaust pipes and muffler from their hangers. -
Install the New Exhaust:
– Begin by fitting the new exhaust system components according to the manufacturer’s instructions.
– Install the new muffler where the old one was located and secure it with clamps and hangers.
– Ensure all connections are tight to prevent leaks. -
Check and Test: Once everything is secured, lower the vehicle. Start the engine and listen for leaks or irregular noises.
Regularly inspect the exhaust system after installation to ensure it remains in good condition.