Ball and sockets are flowmaster parts from summit racing and are amazing. I have taken them apart probably 5 times and never had a leak out of them. I think when I get my stainless headers I'm doing them again, or v bands, not sure yet.

Plugs are kind of a PITA but I have changed them in 15 minutes before. But then again me and my brother have changed a clutch disc in my car in 45 minutes

My headers are for sale too with the ball and sockets PM me if your interested