Ok guys...I have the 2.5RS header's ordered (thanx for calling me so quick Brad) for my 2002 Impreza OBS. The part numbers for the gasket's are as follows:
Manifold Gasket- (Cheap to replace, highly recommended)
44022AA020 x 2 at $9.82 EACH
Flat Gasket (Goes between end of the manifold/header y pipe or car??? other end of manifold anyway...not sure if'll I'll need it, but figured I would ask about all gasket's that hooked to the stock manifold while I'm under there)
44165FA000 x 1 at $10.27 EACH
I'm thinking about taking pictures as we install the headers for a how to section.....would anyone use a how to with pic's??? Now I'll I have to do is wait........