The HKS Full Dual exhaust is only available for the 350Z and features full exhaust piping for each engine bank, right to the tail. This provides improved exhaust flow and reduces interference. Features Stainless Steel SUS304 construction and Titanium tail 1.2mm pipe wall thickness 3 Piece design, 2x 60mm Piping & 110mm Tail Left & Right Noise volume approaching 87db compared to standard 80db Balance pipe to ensure no pipe stress at low RPM JASMA Approved