While I was re-installing my engine today I messed up my exhaust gasket beyond repair. After looking through drawers and boxes trying to find a suitable replacement I remembered the roll of aluminum foil tape.
Now the tape itself isn't cheap ($15 a roll) but I swear it has more uses then duct tape!
Put away the torches and pitchforks, it really does!
Used about 6 little 2" pieces, trimmed each layer before adding the next and burnished down with a wooden hammer handle.
Works great! My exhaust has never been quieter.