From my memory my best 0-60 based on  a g-tech for timing was 5.1 
It probably can go faster, I dont do many hard launches in my car. If I would practice more I think I can lower that time based entirely in getting the turbos to spool up  better at the launch. 
Mine is a 99 with a 2.5.
I think there is something special under the hood, It does make a whistle noise sometimes when I let off the gas. I think thats a blow off valve or something.