RoadsterSport SUPER-Q TWIN TIP Stainless Steel PREMIUM ADJUSTABLE Sound MX5 Miata Exhaust for MX5-ND , all
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RoadsterSport "SUPER-Q" TWIN TIP Stainless Steel PREMIUM ADJUSTABLE Sound MX5 Miata Exhaust

2016-2023 · all

Helmholtz Chamber Design Means All the FUN, without the DRONE

PART NUMBER: 61-1958


Reg. Price: $976.35

Sale Price: $849.00



Free shipping offers apply only to destinations within US Lower 48.

Reg. Price: $976.35

Sale Price: $849.00



Free shipping offers apply only to destinations within US Lower 48.


Twin Tip version of our famous SuperQ.

Following the huge popularity of our NC application "Q" Muffler this Q for ND is once again "Q" for Quiet version. This attenuation design is a premium "NO-DRONE" choice, great for those who want a more throaty sound than stock but still mild. Smooth mandrel bent tubing redirects the flow for a side entrance to the muffler where we engineered a three chamber design. It would be much cheaper to just use a single big muffler with nothing but perforated pipe through the center surrounded by sound absorbing materials, but doing it right with the three chamber design allows us to tailor precisely the FUN sound you want when you push it toward redline, without the harsh drone on decel that the more simple designs make you suffer.

This triple attenuation chamber design muffler is the most mild twin tip of our choices and mellow on an otherwise stock MX5 Miata...about 20% louder than stock when on the gas...with a deep sporty burble anytime you hit the go pedal but nearly as quiet as stock when you just want to cruise.

This triple chamber design features an exclusive 'Helmholtz Resonator' first chamber that massively reduces the standing wave inside the exhaust system, reducing the 'booming' tendency by over 50db inside a top up Miata cabin that is common on many aftermarket Miata exhausts. To create this Helmholtz chamber we outfitted our 2016 ND Gen Miata with a computer and sound analyzer and microphones and drove it under varying conditions and loads and without the stock muffler for the computer to carefully measure the sound spectrum coming out the stock midpipe. We then use that data and some special software to calculate the particulars of the Helmholtz chamber size and valve specs to precisely knock down the frequencies we do not want to hear in the new Miata while allowing the good throaty burble fun sounds to pass through. The result is deep throaty fun, without the drone!

The Helmholtz chamber gives this muffler a dual personality, under decel it is super mild and quiet, yet when you push hard toward redline it gets more fun and racy! With the top down lots of fun throaty burble, but dramatically more tame when the top is up. 24 pounds. In brief, FUN when you want it, and yet totally mild when just cruising top up.

Yes, simple BOLT ON install, just two bolts!

INCLUDES our exclusive baffle cone insert in the Tips which is REMOVEABLE and allows you to set the sound to sporty...or quiet. Also available is our optional packed baffle with which you can quiet it down even more. This system is 10% to 15% louder than the stock Miata muffler on an otherwise stock MX5 Miata exhaust system....and only 20% over stock sound level when used with our RoadsterSport midpipe. Works great with stock midpipe or RoadsterSport Midpipe. Customers planning a header are encouraged to order special Header version of our SuperQ that adds additional resonator on inlet side to best cope with the raspy sounds unleashed by a header swap. Baffles retained by small hex bolt inserted from well under each tip.

Proudly made in the USA with a LIFETIME WARRANTY, emissions legal in all 50 states. Fits all 2016 and newer Miatas with manual or automatic transmission, soft top or retractable hardtop. This Miata exhaust is guaranteed for as long as you own your Miata.

BRIAN'S APPLICATION NOTES. MORE aggressive sound than our other SuperQ choices! Not just two tips on one pipe from the muffler, true twin exit from the muffler means a bit more sound than all single tip versions of SuperQ. And sound frequency balance is very different from each tip, the driver's side tip is essentially skipping final chamber in the muffler. That means you can have some fun mixing your own sound here using baffles in just one tip or the other. And, use of our exclusive baffles will have a big impact on sound reduction with this version, use of baffle in the driver's side tip will have the most reduction in sound level because that is the most direct route out. Result is many levels of sound, lots of control by the end user and ability to dial the result to your own preferences. My recommendation is remove the included baffles before install, my bet is that many never put them back because this muffler is quite mild on otherwise stock MX5.


Installation of this Miata exhaust is SUPER EASY...just two 14mm bolts to loosen! When you open the big box you will find separate foam wrap on the exhaust tip, leave that foam around the tip during your install to protect the polished tips and your car's soft plastic in the exhaust cutout. Use gloves. Note the 'bolts' from the factory are actually studs with springs and nuts and the factory usually jams the nuts on so hard that unbolting it will bring the stud out too. If that does not happen then use a 13mm long socket to pull the stud, or use jam nut technique where both nuts are put on one stud against each other and then wrench used on the inner of the two to back out the stud. Then lube up the stock exhaust hangers with dish soap and yank stock muffler back and forth to work the soap into the rubber hangers and then the muffler will slide off those rubber hangers easily. Then hang the new muffler on the wet and soapy rubber hangers and torque 'bolts' with the springs back in place to 30ft/lbs. Now you can remove foam tip wrap. Option to remove the baffle too, to do so loosen bolt that holds it from under the exhaust tip and use it as handle to shake the baffle loose and then unscrew bolt the rest of the way and pull the baffle (pulling baffle raises the sound slightly). If you don't pull the baffles, put a socket on the nuts and double check they are properly torqued before you drive (with lock washer just 15 ft/lbs is plenty, don't overdo it). Note the muffler to midpipe joint is a ball socket connection for the first time on a Miata, it is designed to move a lot, so please do not add sealants that will gum up that dry ball socket joint. Note that our flange at entrance to muffler is designed as a dual purpose item that allows going to flat gasket if you later go with our 2.5 inch midpipe, at which point the midpipe has a flex joint to replace function of the donut and you get a clean 2.5 inches of flow all the way, which is not possible if we stay same small pipe of stock muffler.

Lifetime Warranty.
All Stainless Steel
Dyno tested and proven to make power.
Performance gains in horsepower and torque.
Mild Deep Sound with NO Decel Drone.
Smooth Mandrel formed tube for max flow
User Adjustable sound level using included removeable baffle.



Customer install with our Progress Springs:



Customer Reviews

RoadsterSport "SUPER-Q" TWIN TIP Stainless Steel PREMIUM ADJUSTABLE Sound MX5 Miata Exhaust

I wanted to keep the look of stock while not being stock. This is perfect. It was fairly easy to install, just make sure you have deep sockets to get those two bolts loose. You will really hear this when you first start your car and when you accelerate with any sort of exuberance. However, if you lightly press the accelerator, it is still quiet which I affectionately call "good neighbor mode". The other nice thing about this exhaust is that it is not so obnoxious when you give it the beans that the wife doesn't hate it...which I will take as the wife seal of approval. Well worth the money and very recommended for the Miata owner looking to add that extra something to the experience as well as a little aggressiveness without being too aggressive.

I like the twin tip, because that's what's stock. I didn't want a noisy tin-can muffler that a lot of the "kids" are running on there Hondas and Toyotas, just something a little more authoritative. I can't add or subtract to anything that's already been said here. As a 60s sports car person, I'm quite pleased with the volume, the sound, and the ability to drive quietly out the neighborhood when I need to and enjoy the sound when I want to!

This exhaust is exactly as advertised which was very surprising. It really is 15-20% more louder then stock with both baffles installed and driving/idling. With no drone, no powered up bass canons, most importantly no annoyingness.

The best part about this exhaust is the ability to remove the baffles for it to be louder if you like. I've never seen another exhaust manufacture do this.

The sound is slightly deeper. With both baffles removed it MAYBE goes up to 25% louder with more bass. Cold starts feel like it could be 25% louder but luckily with the MX-5 it's very very brief. Personally I enjoy it with both baffles installed.

The baffle install/removal takes about 30 seconds.

Overall I'd say this is a very great product if you are like me and want an exhaust, but just 15-20% louder, don't want to be too loud. This is probably the most quiet you can get in the after market products.

Wow, just wow. This is my first Miata and my first time swapping a muffler out and I'll say it sounds amazing and couldn't have been easier; I didn't even have to jack the car up. The sound is exactly what I was looking for as it's not too obnoxious but sounds much better than the OEM muffler which sounded rather flat and lifeless to me. As a bonus the stainless steel twin tips look great, too. Aside from the muffler I did not change any other exhaust components and it still sounds great, in my opinion. Highly recommended!

Super easy install, took me maybe 30 minutes. Helps if you have some lubricant for the hangers. Love the sound, more sporty and only a litte louder than stick. I went with the Q because of my future plan on getting a header. Otherwise I would have gone with the street.

Was very simple to install. Sounds classy not cheap or poppy. You control the volume by the
amount you want to throttle. The finished exhaust tips not just look better than OEM but add
value to your toy.

I read a lot and was impressed with the reviews. The product is great. Fitment and shipment were perfect and the sound is just right.

Fitment, finish, and functionality were all perfect. I opted for the removal of both baffles, and the sound, at start and high rpms, is wonderfully deep and rumbly, with no drone during low rpm/cruise times.

My first time install was less than perfect; with stuck bolts and other issues, but definitely recommend it, if only for the learning experience.

Do recommend this item be sold as a kit that includes the donut gasket and the mounting bolts/spring/nut assembly.

PERFECT!, Just the right sound, not too load and not at all raspy. Even my wife loves it. My MX5 sounds like a British roadster. Easy install. Zoom Zoom. You are right this is the right choice for the automatic.

Great exhaust. Really simple to install as stated in the instructions.

I took off the baffles before installation, and it sounds "choice".

Just the right amount of "oomph" without it being obnoxious.

If you're looking for a tasteful exhaust, this is it.

Replaced stock muffler on my new 2021 Miata Grand Touring before it left the dealership. I had a 2020 and I wanted a better sounding muffler. Definitely got that with the SSTT. Just the right volume, and nice low tone. I be happy.

I bought this muffler for my 2017 MX-5 and it's the perfect sound I wanted. It was packaged really well and arrived at my doorstep intact. I also purchased the mid pipe with this muffler and headers from a different source. Since this full exhaust system was installed, I've had my Check Engine Light on. I brought this car to the Mazda dealership and had it thoroughly checked, but he CEL remained on even after the car was started. The shop that installed my exhaust also checked the full system and didn't find any anomalies whatsoever. I feel that I've exhausted everything I can to get this issue resolved. In retrospect, I should've just gone with the muffler and not have to deal with the persistent CEL issue. It's not worth the hassle, not to mention the extra expenditure!

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