Product Overview
ISR Performance Circuit Spec Miata Cat-Back Exhaust 90-93 (NA 1.6)
The exhaust features 2.5'' brushed stainless steel piping and flanges, and a polished stainless steel muffler with 4'' tip.
Whats in the BOX
- 1x Mid pipe
- 1x Stainless steel muffler with 4'' tip
- 4x 2.5" Exhuast gaskets
- 6x bolts
- 6x Nuts
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.
Whats in the box:
- 1x Mid pipe
- 1x Stainless steel muffler with 4'' tip
- 3x 2.5" Exhuast gaskets
- 6x bolts
- 6x Nuts
ISR Performance Circuit Spec Exhaust - Miata NC (06-13) Manual Transmission
The ISR Performance NC Miata exhaust features a 3 piece 2.5'' brushed stainless steel piping and flanges, and a polished stainless steel muffler with 4'' tip.
Includes all gaskets and hardware
What’s in the box:
- 1x Front pipe with donut flange
- 1x Resonated mid pipe
- 1x Muffler section with 4” tip
- 1x Donut exhaust gasket
- 2x 2 bolt 2.5" exhaust gasket
- 2x Springs
- 6x Bolts
- 6x Nuts
***IMPORTANT***
This exhaust does not have an o2 bung, if your NC is fitted with an o2 sensors in the exhaust down stream of the header you will need to have a fitting welded to the exhaust. Manual transmission only.
ISR Performance Circuit Spec Exhaust - Miata ND1 2016-18
The ISR Performance ND Miata exhaust features a 3 piece 2.5'' brushed stainless steel piping and flanges, and a polished stainless steel muffler with 4'' tip. Intended for use on manual transmission vehicles only.
Includes all gaskets and hardware
What’s in the box:
- 1x 2 bolt front pipe with Resonator that bolts to the header with V-band rear flange
- 1x V-band mid pipe with 2 bolt rear fang that bolts to the muffler section
- 1x Muffler section with 4” tip
- 1x V-band clamp
- 1x 2 bolt 2.5" exhaust gasket
- 2x Bolts
- 2x Nuts
Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.
