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. MONZA Performance Exhaust Systems are designed to replace the original equipment muffler system and, in most cases, attach to the stock or stock replacement catalytic converter. This 2-1/4 system fits 1999-04 Pontiac Grand Am and Oldsmobile Alero with 4- and 6-cylinder engines. Dual 3 MONZA Premium Exhaust Tips are included.