Flowtech Headers - Mid Length - 1.5 in Primary - 2.5 in Collector - Gaskets / Hardware Included - Steel - Metallic Ceramic - Small Block Chevy - GM A-Body / B-Body / F-Body / G-Body / X-Body 1967-91 - Pair-31108FLT--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--YES Truck Freight ---NO