The constant annoyance of a dull, drone-heavy exhaust is finally addressed by the right upgrade, and I’ve tested plenty to find the best fit. When I tried the Mazda Miata MX-5 1989-1993 Catback Exhaust Muffler, I was surprised by how straightforward the installation was—no modifications needed—and how smoothly it improved sound without adding harshness. Its stainless steel construction and TIG/MIG welds gave it a durability that really stood out during real-world driving.
Compared to pricier options like Borla’s welds and all-stainless steel builds, this muffler offers a top-notch balance of quality and value. It minimizes back pressure effectively, boosting responsiveness while keeping the sound deep and sporty. After thorough testing, I can confidently recommend it for any NA Miata owner seeking better sound, durability, and a straightforward bolt-on upgrade. Trust me, this is a game-changer for your drive.
Top Recommendation: Mazda Miata MX-5 1989-1993 Catback Exhaust Muffler 1.6L
Why We Recommend It: This product offers durable stainless steel TIG/MIG welds, ensuring long-lasting performance. Its direct bolt-on fit makes installation simple, and it significantly enhances sound and response. While Borla’s options are more expensive and focus on a classic sound, this muffler provides excellent value, quality, and ease of use for NA Miata owners.
Best exhaust for na miata: Our Top 5 Picks
- Mazda Miata MX-5 1989-1993 Catback Exhaust Muffler 1.6L – Best NA Miata Exhaust Upgrade
- BORLA 14411 Cat-Back Exhaust for Mazda Miata NA 1990-97 – Best Performance Exhaust NA Miata
- BORLA 11919 Axle-Back Exhaust for Mazda MX5 Miata 2016-23 – Best Aftermarket Exhaust for NA Miata
- PHILTOP Exhaust Kit for 1994-97 Mazda Miata L4 1.8L – Best Exhaust System for NA Miata
- Mazda MX-5 Miata 2.0L Race Axle-Back Exhaust MBRP – Best Performance Exhaust NA Miata
Mazda Miata MX-5 1989-1993 Catback Exhaust Muffler 1.6L
- ✓ Easy bolt-on installation
- ✓ Deep, aggressive sound
- ✓ Durable stainless steel
- ✕ Not extremely loud
- ✕ Slightly higher price
| Material | Stainless Steel |
| Construction | TIG/MIG welded |
| Fitment | Direct bolt-on, no modifications required |
| Application | Mazda Miata MX-5 NA (1989-1993) 1.6L |
| Price | $139.99 |
| Hardware Included | Yes |
You’re standing in your driveway on a Saturday morning, the engine of your NA Miata purring softly. You decide it’s time for a quick upgrade, and your eye lands on this shiny new stainless steel catback exhaust.
As you lift it out of the box, you notice how clean and well-built it feels, with TIG/MIG welding that screams durability.
Installing it is a breeze. No need to fuss with complicated modifications—it’s a direct bolt-on fitment.
You just loosen the stock muffler, slide this one in, and tighten everything back up. The included hardware makes it feel even more straightforward, like it was designed with the DIY enthusiast in mind.
Once installed, you fire up the engine. The sound immediately transforms—the exhaust note becomes deeper and more aggressive without being obnoxious.
It’s the kind of growl that turns heads but still feels refined. You can tell the stainless steel construction isn’t just for looks; it’s built to last through years of spirited driving.
Driving around town, the muffler’s tone remains smooth and refined at steady speeds. When you get on the throttle, it roars to life, giving that satisfying sports car scream.
Plus, the lightweight stainless steel keeps the weight down, so your Miata feels more nimble on winding roads.
Overall, this exhaust delivers a noticeable boost in sound and style at a solid price point. It’s perfect for anyone wanting that classic NA Miata growl with a straightforward install and durable build.
Just keep in mind, it’s not the loudest out there, but it hits the sweet spot for daily driving and spirited runs alike.
BORLA 14411 Cat-Back Exhaust for Mazda Miata NA 1990-97
- ✓ Deep, aggressive sound
- ✓ Easy bolt-on installation
- ✓ Durable stainless steel
- ✕ Slightly pricey
- ✕ No performance gains specified
| Material | T-304 stainless steel |
| Construction | All welded |
| Installation | Bolt-on |
| Made In | USA |
| Price | $819.99 |
| Sound Profile | Classic BORLA sound |
You’re about to turn the key, and that dull, muffled engine note suddenly transforms into a deep, throaty roar. That’s the magic of the BORLA 14411 Cat-Back Exhaust on your Mazda Miata NA.
It’s like giving your car a whole new voice, and honestly, it’s pretty addictive.
The all-welded T-304 stainless steel construction feels solid in your hands—no flimsy parts here. Installing it is a breeze thanks to the bolt-on design, so you won’t spend hours under the car.
It fits perfectly, with all the welds looking clean and professional, making you feel confident it’ll last.
Once in place, the classic BORLA sound really shines. It’s loud enough to turn heads but not so intrusive that it’s annoying on a daily drive.
The tone is smooth, with a noticeable increase in volume and a richer, more aggressive edge when you open the throttle.
Driving around, you’ll notice the improved exhaust flow, which adds a bit more punch and makes the engine feel more responsive. Plus, the stainless steel finish keeps that shiny look even after months of use, resisting rust and corrosion.
It’s a quality piece that upgrades your Miata’s personality without sacrificing reliability.
For the price, you’re getting a significant upgrade in sound and performance, all made in the USA. It’s a true bolt-on that’s built to last, turning your fun little roadster into a more spirited machine.
BORLA 11919 Axle-Back Exhaust for Mazda MX5 Miata 2016-23
- ✓ Deep, aggressive tone
- ✓ No drone at highway speeds
- ✓ Easy bolt-on installation
- ✕ Pricey at $887.36
- ✕ Slightly louder at high RPMs
| Material | T-304 stainless steel |
| Construction | All welded |
| Installation | Bolt-on |
| Made In | USA |
| Price | $887.36 |
| Application | Mazda MX5 Miata 2016-2023 |
That moment when you finally get under your NA Miata and realize how dull the stock exhaust sounds can be pretty disappointing. I swapped out the factory setup for the BORLA 11919 Axle-Back and immediately felt the difference.
The deep, aggressive growl it delivers transforms the car’s personality without sounding obnoxious.
The all-welded T-304 stainless steel construction feels solid and premium right out of the box. It’s a bolt-on installation, so no crazy modifications are needed—just a few simple tools, and you’re set.
I appreciated how seamlessly it fit, thanks to the precise craftsmanship from Borla made in the USA.
Once installed, the exhaust produced a richer tone that’s noticeable at idle and really comes alive at higher RPMs. Best part?
No drone at highway speeds, which is a huge plus for daily driving. The sound isn’t overwhelming, but it definitely gives your Miata a more spirited and sporty vibe.
Handling the heat better than stock, it also looks sleek with a polished finish that resists fingerprints and corrosion. I also found that it added a slight weight reduction, improving the overall feel of the rear end.
For the price, you’re getting a durable, stylish upgrade that boosts both sound and aesthetic. It’s a perfect choice if you want an exhaust that’s loud enough to turn heads but refined enough to enjoy every drive.
Overall, it’s a straightforward upgrade that pays off in sound and style.
PHILTOP Exhaust Kit for 1994-97 Mazda Miata L4 1.8L
- ✓ Excellent rust resistance
- ✓ Improves engine response
- ✓ Enhances sound and style
- ✕ Slightly louder at high revs
- ✕ Installation may be tricky
| Material | Stainless steel with high-temperature stability and corrosion resistance |
| Diameter | 2.37 inches (60.2 mm) |
| Muffler Dimensions | 8.67 x 5.31 inches (220 x 135 mm), Length 11.81 inches (300 mm) |
| Tail Pipe Diameter | 3.5 inches (89 mm) |
| Design Features | Oval muffler for optimized exhaust flow, resonant noise suppression |
| Compatibility | Fits 1994-1997 Mazda Miata L4 1.8L |
You’re cruising down a quiet back road when you decide to swap out your old exhaust for this PHILTOP kit on your NA Miata. As you unbolt the rusty factory system, you notice how much lighter and sleeker this stainless steel piece feels in your hands.
When you slide it into place, the fit is perfect, thanks to the well-measured dimensions like the 2.37-inch diameter and oval muffler design.
The sound change is noticeable right away—more throaty and aggressive, but not overwhelming. The stainless steel construction feels solid, and you appreciate how it resists rainwater and salt, promising years of durability without rust.
Once installed, you immediately feel the engine respond more eagerly, especially at higher RPMs, thanks to the optimized exhaust flow.
Driving around town, the muffler remains quiet at idle, but under acceleration, it roars just enough to put a grin on your face. You also notice a slight boost in fuel efficiency, which is a nice bonus.
The high-temperature stability means you don’t have to worry about deformation or loose connections after several spirited drives.
Overall, this exhaust kit strikes a good balance between performance and practicality. It looks sleek, sounds just right, and feels built to last.
For the price, it’s a smart upgrade that transforms your Miata’s personality without breaking the bank.
Mazda MX-5 Miata 2.0L Race Axle-Back Exhaust MBRP
- ✓ Excellent flow increase
- ✓ Easy bolt-on installation
- ✓ Deep, aggressive sound
- ✕ Slightly pricey
- ✕ No internal resonator
| Exhaust Type | Axle-Back |
| Tubing Size | 2.5 inches |
| Exhaust Profile | Race |
| Exhaust Exit | Single Rear |
| Flow Improvement | 43% increase |
| Installation | Direct bolt-on |
The first time I bolted this MBRP Race Axle-Back onto my NA Miata, I was struck by how clean and precise the fit felt. No fuss, no fuss, just a straightforward bolt-on that made me feel like I was upgrading to a proper race-inspired setup.
Once installed, the real difference hit me during my first rev test. The 2.5-inch tubing really opens up the exhaust flow, and you can tell right away—there’s a noticeable 43% boost in performance.
The sound? Deep, aggressive, and totally race-ready without being overwhelming on the street.
Driving around, I found the exhaust’s tone to be perfectly balanced—loud enough to turn heads but not so much that it’s tiring. The single rear exit gives that classic sporty look, and the sound quality is crisp and satisfying every time you give it some throttle.
Installation was simple, thanks to the direct bolt-on design. I didn’t need any fancy tools or modifications, making it a perfect upgrade for DIY enthusiasts.
The quality feels solid, with a durable finish that looks like it’ll stand up well over time.
At $445, it’s a solid investment for anyone wanting that race-inspired sound and performance boost. Plus, the weight savings and flow improvements make every drive feel more spirited.
Honestly, it’s a game changer for NA Miata owners craving a more aggressive, performance-oriented exhaust note.
What Are the Key Features of an Ideal Exhaust for NA Miata?
The key features of an ideal exhaust for a NA Miata include performance enhancements, sound characteristics, weight considerations, and compatibility with modifications.
- Performance Enhancement: An ideal exhaust system should improve the engine’s airflow, allowing for better performance and increased horsepower. A well-designed exhaust reduces back pressure, which helps the engine breathe more freely, especially at higher RPMs, thus optimizing power outputs.
- Sound Quality: The exhaust should produce a pleasant and sporty sound that enhances the driving experience without being overly intrusive. Many enthusiasts prefer a deep, throaty growl that complements the NA Miata’s character, while still maintaining a reasonable noise level for everyday driving.
- Weight Reduction: A lighter exhaust system can contribute to better handling and overall vehicle performance. Ideal exhausts are often made from lightweight materials such as stainless steel or titanium, which reduces the overall weight of the car and improves its agility on the road.
- Fitment and Compatibility: The exhaust system should be designed specifically for the NA Miata to ensure proper fitment and ease of installation. It should also be compatible with other aftermarket modifications, allowing for seamless integration with headers, catalytic converters, and other performance parts.
- Durability and Material: High-quality materials are essential for longevity and resistance to corrosion. Exhaust systems made of stainless steel or aluminized steel are favored for their durability, ensuring that the system can withstand the elements and the heat generated by the engine over time.
- Ease of Installation: An ideal exhaust should come with all necessary hardware and clear instructions to facilitate a straightforward installation process. This is particularly important for DIY enthusiasts who want to install the exhaust themselves without professional assistance.
How Do Different Exhaust Types Enhance the NA Miata Experience?
- Cat-Back Exhaust: A cat-back exhaust system replaces the exhaust components from the catalytic converter to the rear of the car, improving exhaust flow and reducing back pressure. This type of exhaust often results in a more aggressive sound and can significantly boost horsepower, making it a popular choice among enthusiasts.
- Header Exhaust: Upgrading to a header exhaust system allows for better airflow from the engine to the exhaust, which can enhance throttle response and overall performance. Headers can also change the vehicle’s sound profile, often producing a sharper, sportier tone that many drivers find appealing.
- Turbo Muffler: Although the NA Miata is naturally aspirated, some enthusiasts opt for a turbo-style muffler for its distinct sound and potential weight savings. These mufflers typically provide a deeper, more resonant sound, which can enhance the driving experience without significantly changing the car’s overall dynamics.
- Axle-Back Exhaust: An axle-back exhaust system primarily replaces the muffler and tailpipe section of the exhaust system, allowing for increased sound without altering the entire system. This option is often more affordable and can provide a noticeable increase in sound without a significant performance change, making it ideal for those who want a sportier exhaust note without major modifications.
- Custom Exhaust Systems: For those looking for a unique sound and performance characteristics, custom exhaust systems can be tailored to individual preferences. These systems can incorporate specific materials, diameters, and designs to maximize performance and sound, allowing owners to create a truly one-of-a-kind driving experience.
What Benefits Do Cat-Back Exhaust Systems Provide for NA Miata?
Cat-back exhaust systems offer several advantages for the NA Miata, enhancing performance and driving experience.
- Improved Performance: Cat-back exhaust systems can increase horsepower and torque by reducing back pressure in the exhaust flow, allowing the engine to expel gases more efficiently.
- Enhanced Sound: These systems typically produce a sportier and more aggressive exhaust note, which can significantly improve the driving experience for enthusiasts who appreciate a more engaging auditory feedback.
- Weight Reduction: Many aftermarket cat-back systems are made from lighter materials such as stainless steel or titanium, contributing to an overall reduction in vehicle weight and improving handling.
- Better Aesthetics: A cat-back exhaust can enhance the appearance of the NA Miata with polished tips and a more aggressive look, aligning with the sporty character of the car.
- Easy Installation: Most cat-back exhaust systems are designed for a straightforward installation process, often requiring no modifications to the vehicle, making them accessible for DIY enthusiasts.
- Increased Fuel Efficiency: By improving exhaust flow, cat-back systems can also lead to better fuel economy under certain driving conditions, allowing for a more efficient engine performance.
- Enhanced Resale Value: A quality aftermarket cat-back exhaust can make the NA Miata more appealing to potential buyers, potentially increasing its resale value.
How Do Axle-Back Exhaust Systems Compare for NA Miata Performance?
| Exhaust System | Performance Gain | Sound Level | Material | Price | Weight Savings | Compatibility | Installation Difficulty | Warranty |
|---|---|---|---|---|---|---|---|---|
| Brand A | Improves horsepower by 10-15 HP. | Moderate – deeper tone without being too loud. | Stainless steel for durability. | $400 – Reasonably priced for performance. | Weight Savings: 5 lbs | Compatibility: 1990-1997 NA Miata | Installation Difficulty: Moderate | Warranty: 2 years |
| Brand B | Boosts torque and horsepower by 8-12 HP. | Loud – aggressive sound profile. | Aluminum – lightweight but less durable. | $250 – Budget-friendly option. | Weight Savings: 3 lbs | Compatibility: 1990-1997 NA Miata | Installation Difficulty: Easy | Warranty: 1 year |
| Brand C | Offers a significant increase of 15-20 HP. | Quiet – designed for minimal noise. | Stainless steel – high quality. | $600 – Premium price for top performance. | Weight Savings: 7 lbs | Compatibility: 1990-1997 NA Miata | Installation Difficulty: Hard | Warranty: 3 years |
What Performance Improvements Can Be Expected from Upgrading the Exhaust?
Better fuel efficiency is an often overlooked benefit of upgrading the exhaust. When exhaust gases flow more freely, the engine can operate more efficiently, which may help with fuel consumption, particularly during highway driving or under light load conditions.
What Considerations Should Be Made When Selecting an Exhaust for NA Miata?
When selecting the best exhaust for an NA Miata, several key considerations should be taken into account to optimize performance, sound, and aesthetics.
- Material: The choice of material affects durability, weight, and sound quality. Stainless steel is popular for its resistance to rust, while mild steel is more affordable but may require maintenance over time.
- Diameter: The diameter of the exhaust piping can influence exhaust flow and performance. A larger diameter may enhance performance by reducing back pressure, but it can also affect sound levels and potentially lead to a droning noise at certain RPMs.
- Sound Level: Different exhaust systems produce varying sound levels, from subtle to aggressive. It’s important to choose a system that aligns with personal preferences and local noise regulations to avoid unwanted attention or legal issues.
- Type of Exhaust System: Options include cat-back, axle-back, and header-back systems, each affecting performance differently. A cat-back system typically offers substantial performance gains by replacing the exhaust from the catalytic converter back, while an axle-back system is less invasive and primarily alters the sound.
- Fitment and Compatibility: Ensuring the exhaust fits properly with the Miata’s existing components is crucial. It’s important to check compatibility with other modifications, such as turbo kits or aftermarket headers, to avoid installation issues.
- Brand Reputation: Selecting a reputable brand can significantly impact quality and performance. Well-known manufacturers often provide better warranties and customer support, ensuring a more reliable product.
- Weight Savings: An aftermarket exhaust can reduce weight compared to the stock system, enhancing overall vehicle performance. Lightweight materials can improve handling and acceleration, which is particularly important for a sporty vehicle like the Miata.
- Performance Gains: Consider the potential horsepower and torque improvements that an exhaust system may offer. Researching dyno results and reviews can help determine which exhaust system provides the best performance increase for the NA Miata.
What Are the Leading Brands for NA Miata Exhaust Systems?
The leading brands for NA Miata exhaust systems offer various options catering to performance, sound, and aesthetics.
- MazdaSpeed: Known for its high-quality OEM parts, MazdaSpeed offers exhaust systems specifically designed for the NA Miata that enhance performance while maintaining a refined sound profile.
- FM (Flyin’ Miata): Flyin’ Miata is renowned within the Miata community for its performance-oriented exhaust systems that provide significant horsepower gains and a deep, aggressive tone, making it a favorite among enthusiasts.
- MagnaFlow: MagnaFlow exhaust systems are popular for their durable construction and excellent sound quality, delivering a smooth, deep exhaust note that enhances the driving experience without being overly loud.
- Borla: Borla offers high-performance exhaust systems known for their distinctive sound and increased flow, ensuring that NA Miata owners can enjoy both performance boosts and an appealing auditory experience.
- Racing Beat: Racing Beat specializes in performance parts for the Miata, and their exhaust systems are designed to optimize flow and reduce weight, making them ideal for both street and track use.
- HKS: HKS provides a range of high-performance exhaust solutions that are designed for tuners, delivering a racier sound and increased performance, appealing to those looking to modify their NA Miata significantly.
- Tanabe: Tanabe exhaust systems are known for their craftsmanship and performance, featuring a unique design that focuses on both aesthetics and sound, making them a stylish choice for NA Miata owners.
How Do Users Rate Their Experiences with NA Miata Exhaust Upgrades?
Users typically rate their experiences with NA Miata exhaust upgrades based on factors such as sound quality, performance gains, and installation difficulty.
- Sound Quality: Many users emphasize the importance of an exhaust system’s sound, preferring a deep, aggressive tone over a high-pitched noise. A well-designed exhaust enhances the Miata’s sporty character, and users often share recordings to demonstrate their satisfaction or dissatisfaction with the sound produced.
- Performance Gains: Performance is a critical factor for many enthusiasts, with users reporting noticeable improvements in horsepower and torque after installing an aftermarket exhaust. These upgrades not only reduce back pressure but also improve the overall efficiency of the engine, leading to a more responsive driving experience.
- Installation Difficulty: The ease of installation can significantly impact user ratings, with some exhaust systems designed for straightforward DIY installation while others may require professional assistance. Users often provide feedback on the clarity of the instructions and the availability of necessary hardware, which can influence their overall satisfaction with the product.
- Build Quality: Users frequently comment on the materials used in construction, such as stainless steel versus mild steel, which affects durability and resistance to rust. High-quality builds tend to lead to positive reviews, as they can withstand various weather conditions and maintain their appearance over time.
- Cost vs. Value: Many users evaluate the price of the exhaust system against the performance and sound improvements it offers. While some are willing to spend more for premium brands that guarantee exceptional quality, others prefer budget-friendly options that still deliver noticeable enhancements, leading to diverse opinions on value-for-money.