Alright so here is the deal, i've got what sounds like an exhaust leak on my car, and I know that when you take the exhaust off about 4 studs come with it. In the past however they have all tightened right back in no problem, however one now is rather loose, and causing a minor leak. What would you guys do? Oversized? Helicoil? New head ? The car is so close to being a driver, just gota take care of the minor shit:).
Eric

you could retap to a larger stud size and put in a stud w/ a larger thread on the head side...you know, two sizes, one stud. or i guess you could helicoil it or do as they do in the ghetto and jb weld it.

I would pull the heat exchangers and look at the studs and the holes carefully. The studs with the larger head side threads work well, but remember you'll be doing it laying on your back with the car on stands and not much room to work. It would be a very good time to chech all of them? The studs are slightly easier to do than the inserts. Good luck