looking into a safc 2 for the turbo ls set up and was wondering if the car gets dyno tuned isnt it usless to have one? even if not the majority of the people i talk to who have it dont know how to tune the damn thing and end almost blowing the motor from setting it up too lean. does it just look pretty in most cases? with a chipped pr4 and dyno tuned i should be good w/o the safc right?