uxcell Stainless Steel Exhaust Pipe Muffler Silencer for Racing Motorcycle Product Name: Motorcycle Exhaust Pipe; Material: Stainless Steel Package Content: 1 x Motorcycle Exhaust Pipe; Color: Sliver Tone Dimension: 43 x 10cm/ 17 x 4 inches(L*D) Inlet Inner Diameter: 30mm/ 1.2 inches Adaptor Hole Diameter: 25mm/ 1 inches