This exhaust features a 2 piece design. A front and mid pipe that mounts directly to the header and features an integrated muffler. This section of pipe is 2.5 brushed stainless steel construction. The rear section features a polished stainless steel muffler with 4 tip. The exhaust also comes with a secondary o2 bung and o2 bung extension for individuals using factory ECU who do not want to have a CEL. Please Note This exhaust does not fit the Turbo Model.