ISR Performance Circuit Spec Cat Back Exhaust Mazda Miata NB 1999-2005 | IS-CSEXH-NB vendor_Ohlins Sold as a full set

Sold as a full set of four (4) pistons

Part #: F2174P

06-07 models will need to move an AC line out of the way

as well as the GrimmSpeed Lightweight Crank Pulley

this is the most powerful modication that can be done to extract the full potential of the naturally aspirated machine

ISR Performance Circuit Spec Cat Back Exhaust Mazda Miata NB 1999-2005 | IS-CSEXH-NB vendor_Ohlins Sold as a full setPart #: IS CSEXH NB 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. Features a 2 piece design. IMPORTANT NOTE: This