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

The ISR Performance Circuit Spec Cat-Back Exhaust for the 1989 to 1993 Mazda Miata NA 1.6 wakes up the original 1.6L roadster with 2.5 inch brushed stainless steel piping and flanges and a polished stainless steel muffler with a 4 inch tip. It is a cat-back design, so the factory catalytic converter stays in place and the system bolts up behind it.

Specifications

• 2.5 inch brushed stainless steel piping and flanges
• Polished stainless steel muffler
• 4 inch exhaust tip
• Cat-back layout

Sound and feel

The 1.6L B6 engine is small, and a well-sized exhaust makes a real difference in how eager it feels at high rpm. The 2.5 inch system lets it rev freely while the muffler keeps the note crisp instead of harsh. On a lightweight NA, the stainless construction is also a long-term upgrade over the rust-prone factory system.

Fitment

Mazda Miata NA with the 1.6L engine, 1989 to 1993. The 1994 to 1997 1.8L cars use a different ISR Circuit Spec system, listed separately.

Included

• 1x mid pipe
• 1x stainless steel muffler with 4 inch tip
• 4x 2.5 inch exhaust gaskets
• 6x bolts
• 6x nuts

All ISR Performance products are designed for off-road use only.