Goodwin Racing RoadsterSport SuperStreet Twin Tip - ND Category_Default Category/MX5/NC/Engine & Cooling In tank design

In tank design

9 pound wonder of a street muffler

large diameter runners and an intake manifold plenum to the stock throttle position

Easily Upgradeable

The FA20 engine in the FR-S/86/BRZ is a finely tuned high compression engine and engine oil temperatures can spike to dangerous levels even on stock cars

Goodwin Racing RoadsterSport SuperStreet Twin Tip - ND Category_Default Category/MX5/NC/Engine & Cooling In tank designWHY: 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. This is a modified version of our all helmholtz Race muffler that adds an ultra efficient high density resonator before the tip to lower the volume while keeping the fun burble and playful