Getting conflicting answers on this, and I'm really not sure why it isn't all over the internet. With the implementation of the STAR program and computer only testing for ODB2 cars, do custom tunes automatically make ODB2 cars fail California smog? If this is the case, I would think this would make a large majority of car enthusiasts straight out leave California and drive most dyno tuning shops out of business in this state. I could see putting the stock tune back on some cars, but on heavily modified ones I'd think you'd risk blowing up the engine or they would run super terrible with the stock tune. I was considering getting an ODB2 car, but definitely wouldn't if this is true. Any input would be appreciated, thanks.