Hi all, I'm working on a tune deal with a tuner who's coming out with B8 ECU and ZF8 tunes. I've had good experience with them in the past on other platforms.

I live in CA and of course will be subject to biennial smog testing. This ECU tune won't be CARB legal, so if I go this route I would have to flash back to stock (which is a feature of their tuning platform) prior to smog testing.

Has anybody done similar, where they went from a non-CA-legal tune and reflashed their stock tune to pass smog? I imagine it should pass just fine but don't want to spend money on this just to screw myself over in 2 years.

Thanks for any feedback!