[jflogerzi]

Originally Posted by colobrio

Howdy. I'm in Colorado, which just went to California testing standards this year. And, I'm due in February, so I'm trying to get my head around this. Thanks for all the helpful info in this thread.


I've got an aftermarket exhaust (headers back) and ecutek tune with four maps, none stock. Assuming Colorado is in fact doing it just like California, do I have it straight that to pass I should (1) put the stock headers and exhaust back on, and (2) get one of the maps reflashed back to the stock map?

Yes. You can keep anything after the front pipe still on. But others must be stock headers, OP, FP and stock ECU tune.