I should say SOME of the 3800's dont use the VE. The Other PCM's like your GXP do use it
You're referring to "virtual" ve? I only ask case I've never seen a 3800 file without and yea I'm tracking for the v8 05-06 but 07 and later use the virtual ve deal too.
06 GXP | 222/227 cam/cartuning turbo kit on 8psi/meth/e85 coilovers/ still on stock trans at 130k