Ok I just got done doing my muffler and tail pipe and my Y-pipe on the driver side manifold/pipe connection is leaking even worse so I am gonna replace it. I bought the Y and gasket for Y-pipe/cat connection. Now I need to know if there is a gasket between the manifold/y-pipe connection? The parts guy at the shop I buy my stuff from was having trouble with getting it from Walker. I also need the to know if the cat connection uses studs to connect the y-pipe or does it use bolts like it does connection to the muffler (gasket I got shows 3 bolt holes). Would I have to go to a direct Ford dealer or can I go to like Pecker Boys or a ABC Auto shop...