[Scrapla]

I have a 90gt and I bypassed the smog pump about 6months ago and I want to remove the whole set up we no longer have emmsions down here in florida and i'll worry about reinstalling it if they do come back someday. What is the easiest way to plug the hole left behind on the H pipe when removing the smog pump line I heard a big enough bolt and some high temp RTV works, and if it does is there a certain bolt size?