C6 Corvette, 1 3/4" Primaries, 3/8" thick CNC laser cut flanges- headers with High Flow converters, 2 1/2" x-pipe and center section. Long tube design makes great power and fits undercarriage perfectly. The best fitting, best performing C6 header available. Includes all clamps, hangers and pipes to mate to the factory slip joint in front of the rear axle.