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. If you have a 1.6L Miata please see our newly released 1.6L Circuit Spec listing!   Whats in the box:

• 1x Mid pipe
• 1x Stainless steel muffler with 4'' tip
• 3x 2.5" Exhuast gaskets
• 6x bolts
• 6x Nuts

  ** All ISR Performance Products are Designed for Off Road Use Only ** LEGAL IN CALIFORNIA ONLY FOR RACING VEHICLES WHICH MAY NEVER BE USED, OR REGISTERED OR LICENSED FOR USE, UPON A HIGHWAY