Dec 9, 2023 #1 P Plymouth man Member Joined Feb 12, 2022 Messages 50 Reaction score 14 Location Woodland ms Does anyone know the diameter of the exhaust down pipe on a 77 newport with a 400 engine?I want to make it duals thought someone has already done it on this forum before I cut it
Does anyone know the diameter of the exhaust down pipe on a 77 newport with a 400 engine?I want to make it duals thought someone has already done it on this forum before I cut it