I'm just wondering if the 06 has the silencer ring. If it does and I removed it would that help the turbo spool up sooner?

No performance gain. I removed mine on my HY35 and WH1C, just makes the turbo sound a little louder. I think it's strictly there to dampen turbo whistle. Rumor has it, removal of the ring increases turbo surge, but I think that is an old wive's tale.

No gains at all. Dodge wanted it added to stop any customer complaints for turbo whistle

As it has been stated it's a noise reduction device, that's all. There is no gain or loss of performance from removing it.