Invidia HS02N3ZGID Gemini Cat-Back Exhaust System with Titanium Rolled Tip for Nissan 350Z Go to amazon.com Related posts Top 10 best 350z exhaust Feature2002-2008 Nissan 350Z Gemini Rolled Titanium Tips Cat-Back ExhaustPiping diameter: 60 millimeterTip size: 110 millimeter DescriptionInvidia 2002-2008 Nissan 350Z Gemini Rolled Titanium Tips Cat-Back Exhaust. 60 millimeter pipe diameter. 110 millimeter tip size.