UPDATE
I purchased a Spectre silicon coupler ($7.99) from Autozone and split it down the middle. I then cut that into 2 pieces. I zip tied the pieces to the IC piping and that eliminated the cold start vibration.
This picture shows where the direct contact was made with the IC piping. This contact occurred with the plastic under tray and the ZSpeed diffuser. Again, this is NOT a fitment problem with the ZSpeed part. It is a fitment problem with the supercharger IC piping.
This picture shows the coupler zip tied to the IC piping to eliminate the metal on metal contact and cured the cold start vibration.
