[JohnM]

Well, the year finally rolled around and I was forced to subject my Stage 1 equipped '03 GT to the emissions test as part of the required Texas state annual safety inspection. I'm in Dallas and they're extremely strict about the test and inspection sticker provision. This test includes an OBD hookup and the test is linked into the state's computers. I had the test done at a Valvoline oil change shop where I knew that the employees were high quality and car enthusiasts. I didn't want to have the test done at the dealer, at least for the first time, as I didn't want to risk that they might flash my Stage 1 computer if it didn't pass.

I was pleased to find that no fault codes were detected and the car passed on all tests. I think if Stage 1 passes here, you're pretty sure to be safe anywhere. I've seen no reports of Stage 1 failing to pass in any juristiction.