I purchased a used stillen exhaust for my G35. I was wondering if anyone can help me identify the gaskets I need for installation. Do I use the factory gaskets for the exhaust manifold to x-pipe connection? Can I use another set of factory gaskets for the second flange connection or is the pipe a larger diameter? If I cannot use factory gaskets, are the other 2 gaskets pretty common? Would shops like Pep Boy's or Autozone carry these?

Thanks.

 

I can only answer your first question. You can reuse the metal gasket between the cat. and headpipe in your exhaust. BTW, it is between the catalyst and head pipe, not the manifold and headpipe. The cat. fits between the manifold and headpipe.

Why not fit the factory gasket, to see is it will fit the other areas, or make a tracing of the flange where you need the gaskets and bring it to an Auto Store to size a new gasket?

Lou