I became a certified welder in highschool through a vocational class that i took and worked for a company making Pressure Vessels for about a year. Now I am in College to be an A&P Tech. We are going to have a welding project that we have to do and I was thinking about building a Turbo Manifold for my car. My question is what is the I.D. or O.D. of the piping that is used on the manifold. Is it 2". thanks in advance.

 

1.5

 

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thats what i needed to know thanks.