Rottweiler air box

Had a 2006 Ktm 990 superduke ,remapped by bsd to work with the blue flame exhausts , was done on a rolling road and gave 120 Bhp at the rear wheel , now runs a lot smoother, my question is ,if I have the Rottweiler air box fitted ,and then remapped to go with that ,what diffrence is this going to make is it going to be worth it as I guess is going to cost £500 plus to get it all done , any advice welcome , thanks Garry