Goodwin Racing RoadsterSport Street Single - NC

This MX5 Miata Muffler was designed for both RACING...and STREET. Our original RoadsterSport "RACE" Miata Muffler is an amazing 8 pounds and designed for the autocross and track MX5 Miata drivers who need to meet sound limits in the low 90 DB range with absolute minimal weight. Our 8 pound Race has also been a big seller with our younger MX5 owners seeking to make a statement and have some fun with their street use. However, many asked us to make another single more focused for the street users... a fun single Miata Muffler that is more subtle than our 8 pound Race wonder...but almost as light. That turned into a tough challenge and after many prototypes you see the production version here.

Why a single for street users? Let's face facts, dual exhausts on a straight four cylinder Miata is a ridiculous waste of weight for the serious sports car enthusiast (Mazda talks about gram strategy in the development of this MX5 but they wasted a lot of weight on duals that provide no performance benefit over singles YET lots of extra weight).

Just 12 pounds means this MX5 miata muffler is 15 pounds less than the stock MX5 miata muffler! How do we do it? For this design we started with our 7 pound Race and added more diameter filled with sound suppression materials and we separated the sound suppression chamber into THREE internally baffled chambers for sound wave attenuation in what is still a highflow design. By using a higher than normal perforation rate on the super high density core, WITH three internally baffled sections, we get absolutely minimal weight and sound for a 12 pound single.

This 12 pound Miata exhaust compares with 19 pounds for our RoadsterSport II Duals and over 26 pounds for the factory exhaust. Designed to accept our glass packed baffle insert to quiet it down more if you like, which is sold separately. SHIPPING NOTE...ships factory direct to you. Final is All POLISHED stainless steel construction and LIFETIME warranty. Uses stock hangers and connects to either our midpipe or the stock midpipe. Proudly made in the USA. Includes mounting gasket and hardware.