i m looking at getting an sct tune to eliminate the skip shift, turn on the fans earlier and adjust for california 91 octane crappy gas. but i keep seeing horror stories about blowing up motors, pinging, and piston damage. was that only when these out of the box tunes first started coming out? have they changed and been refined over the years or still stay away until i can get the car on a dyno to be tuned? any good viper tuners on sct in northern california?