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ISR Performance Mazda Miata NA 1.6 Circuit Spec Exhaust - (1989-1993)

4 Customer Reviews Write a Review

ISR Performance Circuit Spec Miata Cat-Back Exhaust (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


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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.

Write a Review
  • Worth it

    Posted by Unknown on 21st Dec 2020

    One of the best exhaust sounds for a Miata

  • worth it

    Posted by Evan on 26th Feb 2018

    Like the title says worth every penny from delivery to installation everything is there for it and it’s simple and then as soon as you turn on your car after installing it you really think it’s a whole new car...

  • Best exhaust

    Posted by Matt kupchunas on 19th Dec 2016

    Beautiful exhaust haven't heard it down for winter.but the quality and craftsmanship
    is prefect

  • Great Unit!

    Posted by D on 20th Jan 2016

    Exhaust sounds and looks great. The 4" tip really fills out the rear bumper. The note is deep with the nice roadster rasp we all know and love. My friends dig it, overall I am very pleased with my decision.