I have a rev hard turbo manifold with a 35mm wg flange. I was wondering if a 38mm wg will work with the 35mm flange or will i HAVE to use a 35mm wg. The reason i am asking is that there seem to be more 38mm wg's to chose from than 35mm(but i could just be looking in the wrong places).

 

should be fine

 

Thanks i just found out from another source as well that you can use it for either.

 

many manufactures have switched from a 35mm to 38mm. they both use the same flange, you are fine.