and how do you expect to get a tune with the crossfire, to be good for both nitrous and motor?, there is no option to switch between maps for the crossfire which would be ideal to have a tune for n/a and for nitrous, but that is not a option for the crossfire, so basically car will run like **** on motor and lose power if you have a tune for nitrous and if you have a tune for motor and advance timing and get the most out of motor that will likely cause detonation on spray. so please do explain how a tune would benefit you. It is pointless to tune for nitrous and drive around a turd on motor and not worth the tune.