price.. well for my tuning is 150 and trust me tuning a stock car my friend isn't a waste of time..stock gsr's i've seen run 15.0's 15.1.. with a stock gsr running 93 octane i can tune it and promise a 14.9-.8 with a Sad driver.. why? because the ecu isn't using the right setup for 93+ gas.. its doing just what its suppose to do, run regular but for those who run 93+ its a huge jump and with just the major bolt ons i/h/e and a nice tuning you could see mid 14's...with a good driver.. and as far as cost if u come across someone like me i'd do a 4 hour tuning on a wide band for about 150$ your standard bolt on shouldn't cost more then 1000 if that.. if u find the right place to buy from.. my setup is pretty awesome but its how EACH motor reacts to the tuning each is different..