Is this something that should be done to see any gains? Or will you se gains without it?

I'm leary of doing that until my warranty is out though.

 

i wouldn't do the ECU reflash after just those mods...i did after all the other performance mods in my sig and was disappointed...do a search for threads started by me and you'll find it and you can read about my experience. but, honestly...i would do the reflash last...get whatever bolt-ons you want and then get the flash...good luck w/the car