ISR Performance Mazda Miata NB Circuit Spec Exhaust
Roughly 18lb weight savings over the stock exhaust
A front and mid pipe that mounts directly to the header and features an integrated muffler. This section of pipe is 2.5'' brushed stainless steel construction. The rear section will feature a polished stainless steel muffler with 4'' tip. The NB Miata exhausts also come with a secondary o2 bung and o2 bung extension for individuals using factory ECU who do not want to have a CEL.
This exhaust has not been tested on the turbo mazdaspeed model.
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