Designed and manufactured in the USA by PaceSetter, a leading provider of quality made, affordably priced performance products since 1972. MONZA Performance Exhaust Systems utilize the right combination of larger-than-stock, 16-gauge, mandrel-bent tubing and fully-welded, low back pressure, high flow performance mufflers for cooler. smoother engine operation and increased performance. Each system uses corrosion resistant aluminized steel and features polished and chrome plated stainless steel MONZA Premium Exhaust Tips. The finish is a durable black paint. Neccesary hardware and instructions are included. This MONZA Performance Exhaust System fits 1983-85 Mazda RX7 with 12A and 13B engines and replaces the muffler section of the stock exhaust and comes with dual 2-1/2 MONZA tips.