hi all , i am new to this board. i just purchased a neww 997 non s..and would like your thoughts on just adding or remappimg the ecu with either the revo or giac option..this is my second p-car.i had an 04 box s..i changed headers intake and ecu remap with revo...i got about 26 to 28 hp depending on which formula one uses..so i would like to know what if any benfit would come from just an ecu upgrade..thanks