Not too much. Stock converter, headers, o/r x, tune, and bmr k member. I'm really happy with the mph. The last run of the day I trapped 127mph. I should have no trouble getting deep in the 10's with a converter and a little more nitrous.
I think you should work on your 60ft with suspension upgrades. I believe your car should already be in the 10's with that combo. Mine is a stick and I manage the same 60ft. I have a similar combo as yours but 100 shot instead and no headers. Mine ran 11.31 and 125.
The K member is fine for daily driving. There is a little more vibration, but nothing crazy. And I'm not sure what the DA was last Sunday, one of the guys next to us in the pits said it wasn't very good though.