Billet aluminum MAF bung for those of you that are making your own turbo piping kits on a 6.7 Cummins Key Features: - This bung include stainless socket head screws and are precision CNC machined - The bottom has a 4.5″ radius to fit nicely on any 4″ or 5″ pipe - For years 2019 - 2022 - GRD67CM1014 Compatible with: Air Intake, Cummins, Intercoolers & Piping