[NJ346]

Ok, well ever since I did the headers on the car last year I've had an exhaust leak. I've found out where it is and spent the past few days using various "fix it" kits from local autoparts stores. The leak is at the collector. There is about an 1/10" gap because the y pipe is not meeting the collector. I went to go take it to a shop to get it welded on Saturday only to find out the place closed earlier than expected. So I know the right way to fix it would be to take it to an exhaust shop and have them cut up the y pipe so that it fits properly, but has anyone ever used any of these "fix it" exhaust kits that actually work?