California and Stratified Stage 1 Tune

[RBYM]

Has anyone tuned their fiesta st in California with a stratified stage 1 tune and went back to stock tune using their accessport and passed a STAR CERTIFIED SMOG legally? My only mods currently are a Cobb drop in filter, cobb rmm, coilovers and wheels.

I want my car to pass smog legally year after year as long as I can revert back to stock tune and pass smog check and Star certified smog.

 

[Dialcaliper]

Yes, you can go back to stock (Stage 0) as long as you drive it for long enough to reset all the OBD system monitors, which you can verify in the Accessport.

You can also pass with Cobb Stage 1 or Stage 2 tunes, which are CARB approved and will pass the ECU check.

You will *not* pass with the Stratified tune loaded

 

[RBYM]

Yes, you can go back to stock (Stage 0) as long as you drive it for long enough to reset all the OBD system monitors, which you can verify in the Accessport.

You can also pass with Cobb Stage 1 or Stage 2 tunes, which are CARB approved and will pass the ECU check.

You will *not* pass with the Stratified tune loaded

Thank you.

 

[RBYM]

Yes, you can go back to stock (Stage 0) as long as you drive it for long enough to reset all the OBD system monitors, which you can verify in the Accessport.

You can also pass with Cobb Stage 1 or Stage 2 tunes, which are CARB approved and will pass the ECU check.

You will *not* pass with the Stratified tune loaded

How good are the Cobb stage 1 and 2 tunes? Will they damage the engine?