It sounds like you put one of these in your car if I'm reading the above correctly?
No I didn't.
I just remember reading about it and checked my car to see what my car was like.
I'm pretty sure that they are bolts. (It's been a few years)
In my case, my bolt hole flanges rusted off the front pipe, so I couldn't attach the springs/bolts.
I could have just replaced the front pipe for $50 ...
But it wouldn't have ended there.
The front pipe attaches to the bottom of the pre-cat, and I would have had to cut the nuts/studs off to get it off.
So then I'd need a new pre-cat.
To remove the pre-cat, I'd have to remove most of the exhaust manifold, including the exhaust manifold insulator, and this is what I've got...
Does anyone know what size bolt this is ?? Lol
Every nut, bolt, flange, and connection is rotten and rusted.
I would have ended up have to replace the entire exhaust system and maybe the whole damn engine,... and the whole rest of the car. Lol
I talked to MacGyver and this is what we came up with... lol
You might need a new one of these in that connection.
I coated mine with high heat copper RTV silicone to help seal it...