I have a trinity tuner from diablosport hooked up to mine all the time for the last 5 years. no problems at all and can make changes to it at any time I choose or even change the tune al together.
Not much on a can tune. 15-20hp if that. I have a procharger in my car and they had to custom tune using diablosport. With the procharger and tune I'm pushing out 180hp more than stock.