My 2000 Camaro Z28 turbo build 5.3 FI Billet S480
#42
Had to use an exhaust pipe flare tool to out them back into round.
I found that snugging the clamps down a little at a time till when you pull on the pipe it doesn't slide out of the coupler worked out good. Then just give it a few more turns just don't get carried away.
Put 20 psi through them with this method and they didn't pop off. My pipes aren't bead rolled neither
#45
#48