Jba Performance Exhaust Headers - Cat4ward - 1.625 in Primary - 2.5 in Collector - Gaskets / Hardware Included - Stainless - Natural - GM LS-Series - GM Fullsize SUV / Truck 2014-17 - Pair-1850S-4--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO