I have been having a re-occuring exhaust flange leak for the last few months. I can't seem to keep the bolts to stay tight, and I'm getting tired of replacing the two circular gaskets every time I pull it apart to try something new. Has anyone else had this problem with their 22re? If so, how did you fix it? I've tried replacing the studs and nuts with new oem ones and of course used loc-tite, but it still hasn't done much good. Someone suggested that my problem was tightening them with the weather so cold, and that they come loose once the engine heats up. So maybe re-tightening after the engine is hot? I dunno. Thanks for any help.