I chipped it the other day. WOW I LOVE IT!!!  My dad says it feels like a v8 rather than a six.  I called my girlfriend and said I'm leaving her for my car.  that extra boost is killer!!
and I don't have a filter on the turbo, granted I don't floor it because of the lack of flow. but I have a apc cone filter on the end of the turbo to airbox hose.

Marcus

Get the RU-1760 K&N filter. It's worth the $35. You can hear your turbo spool up [very loud], can hear the wastegate, and can hear the turbo flutter when you let off the gas.