hi thanks for reading, i have a 93 z28. When i bought the car, it woulnt start. I had to replace starter. To remove it you must drop down exhaust to ave room. When tryingto remove bolts from manafolds on each side. I cracked and broke of two out f three bolts off from each side. In ending leaving me with one bolt holding each side held on by only one. Does anyone kno how to fix it with eas? I contacted a muffer shop and one man told me about a new product made by a man from a muffler shop. He said it was a c clap sort of design. Does anyone know what iam refring to, ad were i can get two? Or can you give m a better way to fix it? Please email me at cmriggs482@yahoo.com

 

You broke the studs off of the manifolds where it connects to the Y pipe?
It's been a while since I've looked at a stock ex. manifold. But you should be able to grind the remnants flat, and drill holes. then just use nuts and bolts.
Or if they are pressed in, they will just fall out when you grind the heads off. You may have to use a punch to pop them out.

 

You should be able to pop the bolt remnants out pretty easily. You can then use some new bolts and nuts. Use anti-seize or buy stainless bolts and it makes RR that much easier.

The only exhaust clamp I can think of that sounds kind of like what you are talking about is called a marmon clamp, and I don't know if one will fit.