KA-T Guys!

[DarkRaptor42]

Hi people. Im getting ready for my manifold construction and I wanted to know what size piping I should use. mcmaster.com only has 1 1/2'' and 2''. What should I use? What did you use?

[Jeff240sx]

If you're talking about the tubes for the manifold, I have heard that 1.5" is optimal. That's what just about every other tubular manifold is made from. Just make sure you have flanges. Roadraceengineering.com has a gaskets and flanges section for turbos and wastegates. They will have all the flanges you'll need (except the exhaust manifold.)
-Jeff

[DarkRaptor42]

thank you