Originally Posted by 04 EDGE
that should be a "spring bolt" flange and you can get a repair kit for it. it NEEDS to be there or you will break/crack things like manifolds. most exhaust shops can fix this for around 50 bucks.
DO NOT weld it solid!
i got two quotes for a brand new system when i had this problem...800-1000$, it was crap...
i just replaced the gasket in the flange and replaced the bolts and it worked out just fine so far so unless youve already gotten that taken care of, i spent 15$ and got it fixed...