The Borla catback exhaust for the 1989-1993 1.6l and 1994-1997 1.8l NA Miatas is an excellent way upgrade to the look, sound, and performance of your NA Miata. Even though this Miata cat back weighs in at a sparse 16lbs, Borla still made it durable enough to carry their famous Million Mile Warranty! And, because it was designed by Borla, you know it's going to deliver performance gains and sound great doing it.