Remarkable Power RK7501-1.75" x 4" Heavy Duty Stainless Steel Exhaust Flex Pipe Brand New Double Braided Flex Pipe 1.75" x 4" Inlet/Outlet Diameter: 1.75" Flex Pipe Length: 4" Flex Pipe Total Length (including extension): 4 Directly bolt-on with no modification required Profession Installation Highly recommended