Size: 2.5" (2 1/2") Id,2.625"(2 5/8") Od, 16" Overall Length(Total Length Including Extension), 1 Piece of 100% Double Braided Flex Pipe Material: Made By Stainless Steel, Double Braided Construction, Durable anDecorrosion Resisting Function: Vibration and Nose Reduction, Convenient Installation and Extended Exhaust Noise Elimination System Life Installation: Directly Weld-On with No Modification Required Important Note: Installation Instruction is Not Included, Professional Help In Installation May Be Needed RP Remarkable Power, RK7548 Exhaust Flex Pipe 2.5" x 12" Heavy Duty Stainless Steel 16"OL