When it comes to modifying your ND Miata, one of the first upgrades most owners consider is the exhaust system. It’s not hard to see why swapping out the exhaust doesn’t just improve performance; it completely transforms the car’s sound, adding a layer of personality to your driving experience. Whether you’re after a subtle rumble or a throaty growl that turns heads, upgrading your exhaust is a surefire way to make your Miata truly yours. Besides, who can resist the thrill of hearing that crisp exhaust note when you press the accelerator?
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The Borla S-Type Axle-Back exhaust system is built with T304 stainless steel, a material known for its durability and corrosion resistance. With a 2.25-inch piping diameter and dual 3-inch tips, it not only looks good but also cuts down on weight compared to the stock exhaust, tipping the scales at about 16 pounds. Priced at $597, it’s a solid option for those seeking both performance and style.
When it comes to sound, Borla’s S-Type is famous for delivering a deep, aggressive exhaust note. However, it’s not overly loud or intrusive. This system ensures you get that sporty sound without the drone that can make long drives unbearable. The exhaust maintains a consistent tone across the rev range, meaning whether you’re idling or pushing higher RPMs, you’ll enjoy a smooth, refined auditory experience. For daily drivers, this exhaust strikes a perfect balance—it’s noticeable, but not disruptive inside the cabin.
The S-Type features a straight-through muffler design, which maximizes airflow and contributes to a slight boost in power without being excessively noisy. Installation is a breeze, as it’s a direct bolt-on system that uses factory mounting points. The dual-tip design is sleek and understated, fitting perfectly with the ND Miata’s sporty aesthetics. Overall, if you want a noticeable bump in sound quality without going overboard, the Borla S-Type is a fantastic choice. It’s particularly suited for those who drive their Miata daily and want a little extra flair without overpowering the experience.
The HKS Legamax Axle-Back exhaust is crafted from SUS304 stainless steel, ensuring excellent corrosion resistance and longevity. With piping that ranges from 50mm to 54mm (about 2.1” to 2.25”) and dual 3-inch tips, this exhaust delivers both style and substance. At $582, it’s competitively priced for a high-quality system from a brand well-respected in the JDM world.
Sound-wise, the HKS Legamax is slightly louder than stock, offering a rich, raspy tone that adds depth without overwhelming your senses. It produces around 92 decibels, compared to the stock system’s 89 dB, giving you a sportier sound that won’t fatigue your ears on longer drives. Despite the bump in volume, the Legamax avoids rasp and drone, even at highway speeds, making it an excellent choice for daily drivers who want a livelier sound without sacrificing comfort.
The Legamax system is designed with an eye for aesthetics, featuring twin tips that complement the ND Miata’s body shape. Thanks to its high-quality materials and construction, this exhaust is built to last. For those looking to enhance their Miata’s sound without sacrificing day-to-day usability, the HKS Legamax is a fantastic option. Its combination of durability, refined sound, and ease of installation makes it one of the top axle-back systems on the market.
If you’re looking for a more subdued, refined sound, the Magnaflow Street Cat-Back exhaust might be the perfect fit. Made from 409 stainless steel, this exhaust system offers durability with slightly reduced weight compared to stock. The 3-inch to dual 2.5-inch piping optimizes exhaust flow without being too aggressive. Priced at $689, it’s a premium option that delivers a quiet, gentlemanly exhaust note.
Unlike some of the louder options on this list, the Magnaflow Street focuses on providing a subtle enhancement to your Miata’s sound. It’s not designed to be loud or attention-grabbing; instead, it offers a more mellow tone that appeals to drivers who want to upgrade their exhaust without causing too much of a stir. This system is perfect for those who appreciate a smooth, low-key exhaust note that pairs well with the Miata’s refined nature.
In terms of performance, the improved exhaust flow provides mild gains, especially at higher speeds, but sound isn’t the main selling point here. Installation is straightforward, using factory mounting points, so you won’t need any special modifications. For drivers who want a quiet, no-frills exhaust that still delivers on performance, the Magnaflow Street Cat-Back is an excellent option.
The Greddy Supreme SP Axle-Back exhaust is built with 304 stainless steel, known for its strength and rust resistance. The 2.5-inch piping and dual 3.25-inch tips offer a bold look, while the $660 price tag puts it in the premium range. But for what you get, it’s well worth the investment.
Sound is where the Greddy Supreme SP really shines. It provides a deeper, throatier rumble compared to stock, without being excessively loud. This exhaust is perfect for those who want to enjoy a more aggressive sound profile during spirited drives, while still maintaining a pleasant tone for everyday cruising. It strikes a great balance, making it enjoyable whether you’re in the city or on the highway.
Greddy backs the Supreme SP with a limited lifetime warranty, showcasing their confidence in the product’s durability and craftsmanship. The polished finish and high-quality welds ensure that the system will not only perform well but also look great for years to come. Installation is simple, with the exhaust designed as a direct bolt-on system. Overall, the Greddy Supreme SP is ideal for Miata enthusiasts who want premium build quality and a richer sound without sacrificing usability.
The Remark Cat-Back exhaust system is another high-quality option made from 304 stainless steel. With 2.5-inch piping and a price of $660, it delivers a good mix of performance and customization options, making it one of the most versatile systems available for the ND Miata. The sound this exhaust produces is deeper and more pronounced than the stock system, giving your Miata a rich tone that’s perfect for drivers who want a little more presence without overdoing it. Even with catless headers, the Remark system is known for being drone-free, making it an excellent choice for those who enjoy aggressive driving but don’t want to deal with an obnoxious sound at cruising speeds.
One of the standout features of the Remark Cat-Back is the variety of tip options available. You can choose from different finishes such as titanium, black chrome, or carbon, allowing for a customized look that suits your personal style. This exhaust is also available in versions tailored for both automatic and manual transmission Miatas, ensuring a perfect fit regardless of your setup. The removable tips make it easy to adjust the appearance to your liking, while the system’s durability is backed by a limited lifetime warranty.
If you’re looking for an exhaust that offers a deeper sound and plenty of customization options, the Remark Cat-Back is a fantastic choice. Its balance of style, performance, and sound makes it a standout in the ND Miata exhaust market.
It’s clear that each offers something unique. From subtle, refined tones to deep, aggressive growls, there’s an exhaust system to suit every type of driver.
For those who want a perfect balance of sound and comfort, the Borla S-Type and Magnaflow Street systems are ideal for daily driving. If you’re seeking a more aggressive tone, the HKS Legamax and Remark Cat-Back deliver enhanced sound without excessive drone. Finally, if premium build quality and a deep rumble are at the top of your list, the Greddy Supreme SP is a solid option.
Choosing the right exhaust system ultimately comes down to your personal preferences and driving habits. Whether you’re upgrading for sound, performance, or aesthetics, the right exhaust will elevate your ND Miata driving experience. Happy modding!
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