Ok well while my intake manifolds will be off, id like to replace some of the vacuum lines that I can get to because, well they are all really old and brittle as all of you know. My question is, what size do I need and where can I get it. I know at mazdatrix they have it, but can I get it locally at a car parts store or should I just get it from mazdatrix?

 

go local just find out what u need and order a few feet of that

 

Yup, just go local unless you want silicone lines.