Our Nissan 350Z Y-Pipe replaces the standard, complex Y-pipe with a single piece, 2.5" bore T304 stainless steel item. It also includes a pair of flexi joints to help reduce noise resonance without sacrificing performance. Features: Manufactured from T304 stainless steel 58mm - 60mm (2.5") diameter Includes two flexi joints Mirror polished finish Fitment Nissan 350Z 2003-2006 models.