2006-2015 NC Please Choose your model from the drop down box.

Good-Win Racing's Best Seller! 

The unique attenuation design of the Super Q offers 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 Good-Win-Racing engineered a sound wave attenuation first chamber to knock down volume level dramatically while maintaining a flow-through design.

This attenuation chamber designed silencer is mild and mellow on an otherwise stock MX5 NC...about 10 to 15% louder than the standard silencer ...with a deep sporty burble anytime you hit the go pedal but quiet when you are just cruising.

This premium MX5 Silencer is also the BEST choice for those who plan such additional mods as a supercharger or manifold change. The RoadsterSport Q muffler quite simply gives ALL THE FLOW, without the noise!

This is a easy BOLT ON modification that bolts to our mid-pipe, or the factory mid-pipe, or our Racing Beat mid-pipes. 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 with exhaust tips which INCLUDE exclusive Good-Win-Racing baffle cone inserts which are REMOVEABLE and allow you to set the sound to sporty...or quiet. Also available are optional packed baffles with which you can quiet it down even more for those using a header or supercharger, or race mid-pipe, etc.

This system is 10% to 15% louder than the stock MX5 NC exhaust system Baffles are retained by small hex bolts inserted from well under each tip. It is quiet when you cruise down the freeway but delivers a sporty deep burble when you push your foot harder on the accelerator pedal.