Nd miata goodwin exhaust ND Miata MX5 Goodwin RoadsterSport RACE Exhaust Sound & Drive ByJust wanted to show off my exhaust in this video. Which car do you think looks better, and which sounds better? ND Power mods*** Sponsored by Flyin Miata ***If you need more power than the car was built with, this is the place. Sponsored by Lasfit Auto L We check out the Roadstersport Exhaust for the ND MX-5 Miata, show you how to install it, do a sound comparison, and take it for a test drive!⇊ More ⇊Please [ND] Goodwin Racing Roadster Sport exhaust FS:Power Train We would like to show you a description here but the site won’t allow us. 8 NC and the power on the dyno rose from 114 WHP to 128 WHP (he also had the AEM CAI fitted). Call it Dual Personality, Call it Jekyll and Hyde, this is the Rebel in our exhaust lineup and the sound level result depends on what you are doing with the gas pedal and the gear selection. A compilation of clips taken with a good mic to help people decide on whether they should pick up this exhaust for the ND. Which car do you think looks better, and which sounds better? Street, Autocross and Track Performance for your Mazda, Fiat 124, Toyota-Subaru BRZ/FRS/86. 0 wyposażona w sportowy układ wydechowy RCP Exhausts Cat-Back ze zdalnie sterowaną przepustnicą. See our forum MX5 PRHT Project and Dyno thread for many more details on development Mar 8, 2010 · Goodwin Header Build Quality ND Power modsMX-5 Miata Forum > ND (2016+) Miata > ND Power mods > Goodwin Header Build Quality Detailed steps for how to install the Goodwin-Racing midpipe (MaxMidpipe) on an ND Mazda Miata. 6 inch primaries and proudly made here in the USA. I have been searching here and even on GWR's site and I can't see any ND header swap instructions. RoadsterSport SuperStreet Helmholtz Muffler for Mazda Miata. Nov 7, 2025 · The Mazda MX-5 Miata is a dream car for many enthusiasts, known for its agility and powerful performance. Hey guys, I am start looking into exhaust for my miata. With its sleek design and high-performance capabilities, the Goodwin Racing exhaust system takes the MX-5 Miata to the next level. And you can change the tone with the included baffle to make it more to your liking. #miata #header #mazda …more RoadsterSport Race Exhaust Questions ND Power mods Mar 8, 2010 · I just installed the Goodwin Racing RoadsterSport SuperStreet Single tip on my ND a few weeks ago, and I have to say it is excellent! This exhaust makes the car so much more fun to drive vs. comWeb: https://rcpe Miata MX5-ND 2016-2025 Exhaust RoadsterSport MAX Power 4-1 Standard Length MX5 Stainless Steel Header trueMost popular exhausts on the ND are as follows. Nov 7, 2025 · ND MX5 MIATA COLD START GOODWIN RACING ROADSTERSPORT SUPERSTREET EXHAUST SOUND #shortvideo 1 Dislike We sound test the Greddy Supreme SP (axle-back) exhaust and compare it to the Miata OEM stock exhaust on our 2019 Miata RF project car. Find out how much horsepower & torque the Goodwin-Racing RoadsterSport SuperStreet Exhaust makes as we DYNO TEST this popular aftermarket Miata axle-back exh Home ND MX-5 (16+) Exhaust Exhaust Sort By: 1 2 Next HKS HKS Legamax Premium Exhaust - Mazda Miata ND 16+ 2018 ND Miata ~ Progress Springs ~ Roadster Sport Sway F/R ~ PF01 +38mm 17"x7 ~ Indy 500 215/45-17 ~ Open Flash Tablet E85 ~ SSST Exhaust ~ Backup Camera ~ Apple Car Play ~ Carbon Miata Floor Mats (Red Stitching) ~ Flyin Miata End Links Front Only ~ Comparison of BUILD QUALITY and WEIGHT between the Greddy Supreme SP exhaust v. This exhaust replaces both the midpipe and muffler; everything from the header back. More power, better sound and less weight can be just a mouse-click away. Add the Eibach springs + alignment and my car is absolutely perfect, a sheer joyous top down driving experience. It's a little cheap 4 cylinder, it's always going to sound fart-cannish or like tractor if you straight pipe it. Goodwin Racing RoadsterSport Super Street exhaust for the ND Mazda Miata. com. Stainless Steel PREMIUM ADJUSTABLE MX-5 Miata Exhaust. I was thinking of catback exhaust, but i guess it doesn't really make a difference even if i go for axleback. Fits 2016+ ND MX5, Manual Transmission only. Best sounding exhaust is on the flyin miata v8 swap. Aug 23, 2023 · ND Miata Mx5 Goodwin Roadster Super Street Muffler Sound (road and tunnel) Mar 8, 2010 · RoadsterSport Exhausts. Click link for more details. And now, a word from our sponsors ND Power mods*** Sponsored by Flyin Miata ***If you need more power than the car was built with, this is the place. Lo Mar 8, 2010 · Goodwin Racing RoadsterSport Super Street Exhaust ND Power mods Miata MX5-NC 2006-2015 · Exhaust Good-Win Racing is the ONLY vendor actually owning, daily driving, and racing the NC Generation MX5 Miata. Nathan's complete before/after dyno session and 10-100 run! Mar 8, 2010 · Goodwin Racing RoadsterSport Super Street Exhaust ND Power mods Here are a few clips of my full exhaust system on my 2020 Mazda MX-5. Also in-car and A quick mic check of my ‘22 Mazda MX-5 Miata GT 6 Speed with Goodwin Racing RoadsterSport SuperStreet Twin Tip exhaust Because it’s hard to find a good sound clip of the exhaust screaming at Learn how to upgrade your ND Miata's sound and performance with this step-by-step exhaust installation guide! In this video, I walk you through the full proc This Miata exhaust is guaranteed for as long as you own your Miata. In this video I remove the stock muffler and install this one. Designed Street, Autocross and Track Performance for your Mazda, Fiat 124, Toyota-Subaru BRZ/FRS/86. however, i've heard people saying that it may be too loud for street use since TOMEI is known for their loudness? if This MX5 Miata midpipe is slightly larger diameter than stock at 2. First things first; Thank you Goodwin Racing for the R&D design allowing these products to work harmoniously together! The customer service Today Ethan installs some Goodwin Racing headers on the ND. We strive to provide you with the best quality products and stand behind our systems with a Million-Mile Warranty. Similar noise level to stock. Quick sound sample with the new 7500 factory redline for ND2. Very quiet overall. It sounds fine, sounds like a sports car, but it's not like I'm fooling myself into thinking I'm in an inline 6 or flat 6 or a v8. 8K subscribers Subscribe Can anyone tell me how much louder this made your RF with the top up? Curious about either the single or twin tip. Mar 8, 2010 · ND Power mods*** Sponsored by Flyin Miata ***If you need more power than the car was built with, this is the place. Click here to buy now! Twin Tip version of the famous SuperQ. I’ve been enjoying it for the better part of a month now and it’s absolutely outstanding, sounds incredible, has phenomenal welds/build quality, and it was even easier to install than I expected (uses one less hangar compared to the stock muffler, due to the lessened weight of the GWR muffler) Here are a few Jun 3, 2023 · CURRENTLY DUE BACK IN STOCK ESTIMATE MID SEPTEMBER! We are proud to offer our PLUG AND PLAY RoadsterSport Street catted header, all sensors stay in factory locations! This is the most torque you can buy in a catted MX5 Miata header. The NEW VersaTuner Fab9Tuning ECU tune dyno tested on an otherwise stock 2019 Mazda MX-5 Miata RF! How much horsepower and torque can you gain from Fab9's Ve Mazda MX-5 ND 2. Sportier Exhaust: Less Weight, More Power, Better Sound Longtime Miata aftermarket parts supplier Goodwin Racing was one of the first to embrace the new ND model, and they offer a staggering array of parts to personalize your ride. net from several people who have it and have tried many other mufflers. https Mar 8, 2010 · Page 2- best muffler for ND2 ND Power mods Our ND2 is setup for SCCA CS Class Fun, Details in our Forum Thread. https Mar 8, 2010 · Page 2- best muffler for ND2 ND Power mods RoadsterSport SuperStreet Single Tip Stainless Steel PREMIUM ADJUSTABLE MX5 Miata Exhaust Helmholtz Chamber Design Means Max Fun. Frequently goes on sale because people touch their midpipes and/or headers. This is a CATLESS exhaust. Aug 11, 2022 · Roadstersport,midpipe,nd,catted,nc,header,oft2,miata,fab9,jdl,goodwin,exhaust,cat delete,delete,cat,stainless,performance,supercharged In this video we compare the sounds of the OS Giken Remark WR-1 full exhaust with JDL 4-1 header against the stock exhaust with header, and the Goodwin SS mu DESCRIPTION Replacement factory Mazda "donut" style gasket for the junction between midpipe and muffler on the 2016+ MX5. 59K subscribers 67 Mar 8, 2010 · [ND] ($275) Goodwin Race Exhaust w/silencer FS:Power Train WHY: Because YOU want to have fun! HOW: Helmholtz Technology in a Miata Muffler for the First Time! WHAT: A 2016+ Miata Muffler that you can control, aggressive throaty burble fun when you want with wide open throttle, and super mild when you want to just cruise. ND Miata MX5 Goodwin RoadsterSport RACE Exhaust Sound & Drive By Just wanted to show off my exhaust in this video. In this video, we explore the capabilities of the MX-5 Miata with the Goodwin Racing SuperStreet exhaust system. Much louder then stock. Aftermarket parts and tuning from simple bolt on parts to total high performance engine builds. So if you want Mar 8, 2010 · Page 4- Goodwin Racing RoadsterSport Super Street Exhaust ND Power mods Brian Goodwin is a Miata exhaust genious. ND Power mods*** Sponsored by Flyin Miata ***If you need more power than the car was built with, this is the place. . It is the perfect FIRST MODIFICATION and still the best choice for anyone planning future upgrades such as a header change or Mazda's Miata reinvented the two seat sports car market and our Miata performance parts help you create an even better Miata. MX-5 Miata Forum > ND (2016+) Miata > ND Power mods > Goodwin helmholtz exhaust section fell off The ND2 Miata gets its first round of upgrades, including ohlins coilover suspension, Goodwin Racing exhaust, Sparco wheels, & Recaro seats. Looks better then stock. I have installed the Goodwin Racing Max Torque Headers, Magnaflow MaxMidpipe, and the Go ND Power mods*** Sponsored by Flyin Miata ***If you need more power than the car was built with, this is the place. Exhaust Systems for the Mazda MX-5 Miata. BRIAN'S APPLICATION NOTES: Everything we have learned about MX5 Miata exhausts, all our best tricks, have gone into this RoadsterSport Super Q. This review has been posted for all three exhaust system components combined/installed for my ND2 2021 RF club non-brembo- (1)ceramic, 4-2-1 ceramic header + (2)304 stainless midpipe + (3)roadster sport super q header version single tip exhaust muffler. It looks like they vastly improve the exhaust note but I’m worried about pissing off the wife if they end up making the car too loud while driving. just the tip?😏 Reply reply snail_forest1 • yeah, who will look under your car, bolt on tips to your bumper and tell people is a super cool boy race exhaust Reply reply printaport • Reply reply More Installing this exhaust TRANSFORMED my ND3 Miata! ARC performance shop/dealershipmore I install my new Goodwin Racing RoadsterSport Super Street muffler , axle back exhaust , and discuss my Blackbird Fabworx roll bar in my Mazda MX-5 Miata ND. Not designed for use with headers. And now, a word from our sponsors Nathan's video really speaks for the results more than the dyno graph, one seriously fast ND! 10-100 MPH Goodwin Racing long tube header, Goodwin Racing Super Street Twin Tip muffler, Corksport cold-air intake, and E85 fuel. 0:06 Stock Muffler Cold Start0:33 GWR Muffler Cold S Feb 20, 2017 · The Goodwin Roadster Sport II received high praise on Miata. Fiat 124 Exhaust, Suspension, Wheels, Roll Protection, Braces! Project Budget NC Racer: Max Results for Minimum Dollars. I have a goodwin racing race exhaust for my ND. Based on that positive feedback and the volume increase I'm looking for, I just ordered the Roadster Sport II and haven't received it yet. Only exhaust mod is the Roadstersport Race Muffler. 5 inch brushed stainless steel piping and flanges, and a polished stainless steel muffler with large 4 inch tip. May 14, 2019 · Audio only newly installed Goodwin Racing RoadsterSport Superstreet exhaust in my 2016 Miata ND. See photo below for that latest tip design. Stick around to the end, because the last one, might j Find out how much horsepower & torque the Goodwin-Racing RoadsterSport SuperStreet axle-back exhaust + the Goodwin-Racing MaxMidpipe (midpipe) makes as we DYNO TEST this popular aftermarket Miata Our ND2 is setup for SCCA CS Class Fun, Details in our Forum Thread. Each BORLA® Exhaust System is built from premium 300-series austenitic stainless steel to give you the absolute best in performance and durability. Following the huge popularity of Goodwin Racing's NC application "Q" Muffler this Q for ND is once again "Q" for Quiet version. Looking for Miata NA/NB 1990-2005 exhaust or mufflers? You have come to the right place! Click here and shop our wide collection of Miata NA/NB exhausts. Single exhaust pipe. I wanted to look to see how complicated the header swap was or do I just do a mid pipe/muffler if too difficult. BRIAN'S APPLICATION NOTES. ND Miata Goodwin Racing RoadsterSport Race Exhaust - Cold Start, Top up, Top Down - 4k 60 FPS TennTech 37 subscribers Subscribe This MX5 Miata midpipe is slightly larger diameter than stock at 2. E-mail: info@rcpexhausts. After switching from the stock exhaust system to the Goodwin race exhaust, I noticed a feeling of drag in the car at highway speeds. Nov 5, 2024 · Now that I have the audio dialed in I wanted to make a video showcasing how the Goodwin exhaust sounds in real life. Looking for your next Mazda Miata modification for your ND M Hi, I am looking at getting Goodwin racings shorty header/mid pipe/exhaust and programmer. This is mounted on a 100% stock exhaust. Helmholtz Chamber Design means All the FUN, without the DRONE Under 14 pounds! Gains 8hp in independent magazine tests! Comparison of ND2 MX-5 Miata stock exhaust vs. 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. All Stainless Steel 1. Just 14 pounds! Gains 8hp in independent magazine tests! ♦ BLACK FRIDAY SALE ♦ * FREE SHIPPING REVIEWS (94) ADD TO CART MX-5 Miata Forum > Announcements > And now, a word from our sponsors > RoadsterSport Exhaust Systems for NA, NB, NC, NDAnd even Fiat 124. i recnetly came across full titanium TOMEI muffler for nd miata and i love the face that it is light wieght. 2024 Update: Now featuring our signature double wall rolled tip for a more 'polished' fit and finish, and comes with a removeable baffle included. Really like that it is It's subjective, but the Goodwin Racing RoadsterSport SuperStreet TwinTip works well for my taste. Eliminates the catalytic converter in the midpipe. These GWR headers are paired with my roadstersport race axleback and a stock midpipe. In this video we'll review various aftermarket exhausts available for the ND Miata, including the Good-Wi Help/Rules Calendar ND Power mods *** Sponsored by Flyin Miata *** If you need more power than the car was built with, this is the place. Common forum questions Forum usage Contact Us MX-5 Miata Forum > Buy/Sell/Trade > For sale or trade > FS:Power Train>[ND] Goodwin Racing RoadsterSport Race Exhaust $100 Reply Thread Tools Display Modes 1st February 2024, 07:49 # 2 toddnappi Second gear Join Date: Jun 2005 Location: NH Posts: 175 toddnappi Second gear Join Date: Jun 2005 Apr 13, 2021 · Time to do more testing. As a result Good-Win Racing makes and sells more MX5 NC Miata Exhausts than any other company, and we use that experience to help YOU find the best MX5 Miata exhaust choice. Mazda Miata Mx5 Goodwin Racing Borla Exhaust for 2016-2025 Mazda MX-5 Miata [Exhaust System Sounds] Borla Performance Industries 63. Good Win Racing Super Q TT exhaust in different scenarios. Thanks and like always please like, follow, and subscribe. Apr 13, 2021 · Time to do more testing. DESCRIPTION The ISR Circuit Spec Exhaust features a 3 piece 2. I’m really interested in the Goodwin Racing RoadsterSport Race Exhaust but I’m worried it might be too loud. A littlleeeee loud at times, but it sounds so awesome WOT Reply reply snail_forest1 • atleast 6 or 7 tips Reply reply Venomousduck • Like. WHAT: A 2016+ Miata Muffler that you can control, aggressive throaty burble fun when you want with wide open throttle, and super mild when you want to just cruise. Street, Autocross and Track Performance for your Mazda, Fiat 124, Toyota-Subaru BRZ/FRS/86. The Goodwin Racing exhaust has got to be the best exhaust you can get for this car IMO, thoughts? ND Add a Comment Sort by: After installing Good-Win-Racing's Race Muffler on my ND, I had to capture some footage for before and after comparisons, and man what a difference a simple muffler makes! The car screams louder Looking for an ND Miata aftermarket exhaust for your 2016, 2017, 2018, 2019, 2020 Mazda MX-5 Miata? In this video we compare two aftermarket Miata exhausts to the Miata stock exhaust. The Goodwin race exhaust is much smaller than the stock system and leaves a rather large pocket for air to collect in. Using the forum Common forum questions Forum usage Contact Us MX-5 Miata Forum > Buy/Sell/Trade > For sale or trade > FS:Power Train>[ND] Goodwin Racing Roadstersport Race Exhaust (used) Reply Common forum questions Forum usage Contact Us MX-5 Miata Forum > Buy/Sell/Trade > For sale or trade > FS:Power Train>[ND] Goodwin Racing RoadsterSport Race Exhaust $100 Reply Thread Tools Display Modes 1st February 2024, 07:49 # 2 toddnappi Second gear Join Date: Jun 2005 Location: NH Posts: 175 toddnappi Second gear Join Date: Jun 2005 Stainless Steel PREMIUM ADJUSTABLE MX-5 Miata Exhaust. GWR Race. Just 11 pounds! A Revolutionary Helmholtz Chamber Race Muffler for Max Fun Without Drone! Stainless Steel ADJUSTABLE Sound MX-5 Miata Exhaust. The POV has 2 mics blended together to g Goodwin Racing's glorious street muffler for the ND with Hemholtz chamber. Discover the best collection of Miata MX5-ND performance exhausts online at good-win-racing. From daily driven street cars to our HyperMiata record setting race car, we've been playing with and racing the NA/NB since they came out. Tuned by Mat at Orange Virus Tuning with Ecutek RaceRom software. Jul 13, 2021 · In no particular order, Charlie will go through our best-selling top 5 2016+ ND Miata exhaust systems. It is the Goodwin RoadsterSport Race Exhaus This Miata exhaust is guaranteed for as long as you own your Miata. We conduct sound measurements of the Goodwin Racing Roadster Sport Super Street axle-back exhaust and compare it to the Greddy Supreme SP exhaust, and stock Mazda Miata OEM exhaust on our 2019 This 15 pound Miata exhaust compares with 19 pounds for lightest of our RoadsterSport Miata Duals and over 26 pounds for the factory exhaust. Arguably one of the most popular sounding exhausts for a stock miata. Mazda MX-5 Miata (2016+): How to Install ULTER Sport Quad Tip Exhaust Muffler - ND ND1 ND2 ND3 RF ST Sean Stettnichs 935 subscribers Subscribe Mar 8, 2010 · Goodwin SuperQ or FM Hush-O-Matic? ND Power mods ND Mazda MX-5 Miata - Aftermarket Exhaust Options. 5 inches all the way through (see torque gains in our forum dyno thread). May 20, 2023 · Exhaust sound comparison of a ND Mazda Miata running a Goodwin Exhaust and a Fiat 124 Spider Abarth running a Ragazzon exhaust. ♦ BLACK FRIDAY SALE ♦ PART NUMBER: 61-1934 READ REVIEWS (44) | WRITE A REVIEW Street, Autocross and Track Performance for your Mazda, Fiat 124, Toyota-Subaru BRZ/FRS/86. however, i've heard people saying that it may be too loud for street use since TOMEI is known for their loudness? if 2016 mazda mx5 miata GT MeisterR zetaCRD (-20/-23) FM sways (softest setting front/rear) Advanti storm s1 16x8 et35 Conti DWS 06 225/50r16 Goodwin Racing TwinTip SuperStreet exhaust OFT stage3 E85 This video shows you exactly how to install the Good-Win-Racing race muffler on your ND Miata! All you need is a socket set, dish soap (optional, but makes exhaust hangers easier to work with) and I’m looking to get a new exhaust for my ND Miata. Does anyone have any links, pictures or instructions for a ND header uninstall/install Flying through some tunnels along the Blue Ridge Parkway in my 2019 MX-5 Miata. The NEW VersaTuner Fab9Tuning ECU tune dyno tested on an otherwise stock 2019 Mazda MX-5 Miata RF! How much horsepower and torque can you gain from Fab9's Ve 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. Forget putting top up on the highway unless it is 100+ degrees. Over 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. Mar 8, 2010 · New GWR Super Q twin tip exhaust ND Power mods Goodwin race vs superstreet? Which has an “exotic” super bike like sound with no drone when cruising? Has anyone tried both? 10 votes, 12 comments. Miata Exhausts, Cooling, Supension, Wheels and More. Video comparison with sounds of revving. NC Power mods*** Sponsored by Good-Win Racing ***If you need more power than the car was built with, this is the place. This attenuation design is a premium "NO-DRONE" choice, great for those who want a more throaty sound than stock but still mild. These live a hard life on the ND Miata as Mazda made it a flex joint with one flat side and one rounded side and springs in the connection so that as the muffler moves around on the rubber hangers it grinds against the gasket and is held there by just spring tension. It is STUPI ND Miata Goodwin Racing 4-2-1 Header Install | Step-by-Step Guide | Super Q Axle Back Exhaust HirschPower 2. Uses high quality SPUN catalytic converter with metal core (despite presence of converter this unit is not CARB approvedwhich makes it legal in California only for off-road/race track use). HKS Legamax premium. (stock headers, stock midpipe). MX-5 Miata Forum > Regional > Great Lakes/Midwest> Goodwin ND race exhaust in Michigan/northern Ohio? DESCRIPTION Most FUN Miata race muffler right here, yet not for everyone! Designed originally for SCCA CS class autocross on otherwise stock exhaust system. As such this Make sure to watch my other video on my exhaust so you can hear what it sounded like before. RoadsterSport SuperStreet Twin Tip 2016-2025 Stainless Steel PREMIUM ADJUSTABLE SOUND MX5 Miata Exhaust with Helmholtz Chamber. I know there is a modest increase in volume but it’s hard to quantify online. Saves over 4 lbs I have a Goodwin SSST on my ND and I love it. Follow our exhaust comparison series and find out which ND Feb 15, 2005 · A friend had a custom header and dual tip exhaust manufactured fitted with a metallic 350cpi cat on a 1. About Miata Forum Forum Rules Supporting Membership Disclaimer Problems Registration/Login Trouble Roadstersport,super q,superq,axleback,axle,back,nc,header,oft2,miata,fab9,jdl,goodwin,exhaust,cat delete,delete,cat,stainless,performance,supercharged May 20, 2023 · Exhaust sound comparison of a ND Mazda Miata running a Goodwin Exhaust and a Fiat 124 Spider Abarth running a Ragazzon exhaust. This is a modified version of our all helmholtz Race muffler that adds an ultra efficient high density resonator before the tip to Aug 11, 2022 · Quality header construction starts with mandrel bent 304 stainless construction, making this the ONLY MX5 Miata header choice proudly made in the USA with LIFETIME warranty! Beware the choices that are just straight pipe and sharp 90 degree bends welded up in Taiwan and China, they won't last and they won't give max performance in return for the trouble of installing them. It is the Goodwin RoadsterSport Race Exhaust. Roadstersport,street,super q,superq,axleback,axle,back,nc,header,oft2,miata,fab9,jdl,goodwin,exhaust,cat delete,delete,cat,stainless,performance,supercharged After switching from the stock exhaust system to the Goodwin race exhaust, I noticed a feeling of drag in the car at highway speeds. the stock unit. I’ve been researching new exhausts to replace the stock in my NC and came across the Good-Win RoadsterSport Racing exhaust but… The Super Q's 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. Helmholtz Chamber Design means All the FUN, without the DRONE Under 14 pounds! Gains 8hp in independent magazine tests! The Super Q's 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. Just a simple post towards GoodwinRacing’s RoadsterSport SuperStreet muffler. empbcl jyso hvgm exfated ncgfzp rlcerk cmelfs xcvw fywmmha uhtex xaauz knln ayfrn zns nqmm