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

Our Circuit Spec cat-back exhaust for the NA 1.6 Miata. A simple two-piece system in brushed stainless that opens up the rotary-revving little four-cylinder without turning the car into a drone box on the highway.

What It Does

Replaces the restrictive factory cat-back with 2.5" stainless steel piping and a polished stainless muffler with a 4" tip. Two-piece design keeps install straightforward and shipping reasonable. There are no variations on the midsection or tail section, so what you see is what you get.

Fitment

Fits the Mazda Miata NA 1.6 (1989 to 1993). Will not work on Euro-spec models.

What's in the Box

• 1x Mid pipe
• 1x Stainless steel muffler with 4" tip
• 4x 2.5" exhaust gaskets
• 6x bolts
• 6x nuts

Product Details

Brand: ISR Performance

Part Number: IS-CSEXH-NA16

Type: Cat-Back Exhaust, Circuit Spec

Vehicle Fitment: Mazda Miata NA 1.6 (1989-1993), US/JDM spec (not Euro)

Piping: 2.5" brushed stainless steel

Muffler: Polished stainless steel with 4" tip

Design: Two-piece (mid pipe + tail section)

Sold: As a complete kit

Legality: Off-road and competition use only