Please note, if any Racing Beat or Good-Win Racing products are not in stock in the UK, we will aim to fulfil orders within 3/4 weeks

CELEBRATING 20 YEARS OF BUSINESS - 2002 - 2022 

MX5 ND Exhaust Systems

Good Win Racing "Super-Q RoadsterSport 2016 -2022 MX5 Adjustable Sound Silencer 1.5 & 2.0

Good Win Racing "Super-Q RoadsterSport 2016 -2022 MX5 Adjustable Sound Silencer 1.5 & 2.0

£749.00
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Stock Status: In Stock

This attenuation design is a premium "NO-DRONE" choice, great for those who want a throatier 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 centre 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.

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Fits all 2016 and newer MX5's with manual or automatic transmission, soft top or retractable hardtop.

Good-Win Racing's Best Seller!

Promised for years and we finally got it done, a revised version of the famous RoadsterSport Q that is even more successful at controlling sound for customers making modifications such as highflow headers and superchargers. This is also our top recommendation for customers with automatic transmissions, and or customers with the PRHT hardtop, or any customer wanting something deep and throaty when they put their foot in it but not shouting at them when they are just in cruise mode.

This attenuation design is a premium "NO-DRONE" choice, great for those with manual transmission and especially for those with the AUTOMATIC transmission (which tends to keep the RPMS in the lower ranges). By using smooth mandrel bent 2.5 inch tubing to redirect the flow for a side entrance to the muffler we engineered a sound wave attenuation first chamber to knock down volume level dramatically while maintaining a flow-through design. This attenuation chamber design muffler is the most mild and mellow on an otherwise stock MX5 about 10 to 15% louder than stock...with a deep sporty burble anytime you hit the go pedal but quiet when you are just cruising.

This premium MX5 muffler is also the BEST choice for those who plan such additional mods as a supercharger or header change (a header change unleashes a massive amount of additional sound). Our latest and best dyno results for an otherwise stock MX5....and for modified MX's with the header change all the way to supercharged were obtained with the RoadsterSport Q muffler. ALL THE FLOW, without the noise!

Yes, simple BOLT ON that bolts to our midpipe, or the factory midpipe, or our Racing Beat midpipes. INCLUDES New Gasket and fresh Nuts and Bolts to make your install super easy. Weight is 24.5 pounds with baffles removed, 26.5 pounds with baffles installed (stock muffler is over 27 pounds).

Finished in tips which INCLUDES our exclusive baffle cone inserts which are REMOVEABLE and allow you to set the sound to sporty...or quiet. Also available are optional packed baffles (see separate product description) with which you can quiet it down even more for those using a header or supercharger, or race midpipe, etc. This system is 10% to 15% louder than the stock MX5 muffler on an otherwise stock MX5 exhaust system....and only 25% over stock sound level when used with our complete 2.5 inch RoadsterSport header and 2.5 inch RoadsterSport midpipe. Baffles are retained by small hex bolts inserted from well under each tip.

Installation of this MX5 exhaust is SUPER EASY...just two bolts! You don't even need to jack up the car, this installation can be done in your driveway! Installation notes on our forums --- CLICK HERE TO READ MORE. This MX5 exhaust is guaranteed for as long as you own your MX5.

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