Some questions to anyone who has installed the FIA side pipes.

I found the bolts and nuts for the J pipe to the shortie header to be extremely difficult to get to thread on. Should they be this tight when installing?

Once these are on, is there a reference for lining up the side pipe to a reasonably approximate position if the body is not on?

Would copper RTV be the best choice to seal all the joints, or would gaskets work better?
Thanks.