No, the tunes don't transfer with the car from person to person. What are you replacing the mustang with? Seems like you might loose money with selling your tuner with it since you don't have many mods. Why not return it to stock and return the CAI to stock?
HIS (Mine) 2011 Ford Mustang GT/ Rapid Spec 400A: Performance White/ MODS: Black 18x9 (front)/ 18 x 10 (rear) AM Saleen Replicas with Nitto NT555s, STEEDA Axle-Back, BBK Off-road X-pipe, Barton Industries Short Shifter, 3.73's, BOSS intake manifold, BBK 85mm TB, STEEDA 101mm BOSS CAI, SCT SF3/ BAMA Tuned, JLT Oil Sepator, Eibach Pro-Kit, Adj Panhard Bar, LCAs
HERS (Wife's) 2013 Ford Mustang/ Sterling Grey/ MODS: Flowmaster Axle-Back, K&N Drop-in filter