I need to know the outer diameter of the piping because i am using it as part of my charge pipe for my turbo setup. I need to order a silicon transition to go from the ic piping, 2.5", to the cai, which i think would either be 2.75-3"

 

i'm fairly certain it is 3"

 

Its 3 right on the spot. Certainly I think so too. If not spank my booty