Vehicle Fitment
Mazda
Circuit Spec Exhaust (IS-CSEXH-NA) by ISR Performance®. ISR Performance Mazda Miata NA Circuit Spec Exhaust-1994-1997 Mid section and tail section are standard and there are no variations available. The exhaust features 2.5'' brushed stainless steel piping and flanges, and a polished stainless steel muffler with 4'' tip. The current NA Miata exhausts have been tested on the OBD1 & 2 1.8L NA Miatas and do feature a secondary o2 bung. If you have a 1.6L Miata please see our newly released 1.6L Circuit Spec listing!