Motorcycle Exhaust System Link Pipe Outer Diameter: Approx. 51mm/2Inch Material:Stainless Steel Professional Installation Recommended Fitments: For Kawasaki ZX-6R 2009-2017 Package List: 1 x Motorcycle Exhaust Middle Link Pipe Note: *Please Ensure This Part Fits For Your Motorcycle Before order. *Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) *If you have any question , Please contact us firstly by email , we will follow your case until solved . *Customer satisfy ,we satisfy.