Rob CT4-V
Active Member
I'm planning on tuning mine someday. Just want the warranty for now. I have tuned all my cars since the 90's and all passed emissions. We had a guy with open headers trailer his car to an emissions station. Bet the attendants he could pass and he fired it up, they plugged it in and it passed. Drove back on the trailer and went home. Just about anything can pass with plug in inspections with the right tune/file.I’m newer to this platform and am making an assumption here but you seem to be concerned about failing emissions. I think just a tune will yield big increases and I can’t imagine that would cause you to fail emissions. In Illinois all they do is hook a sensor up to your tailpipe at idle and it’s pass/fail. I can’t imagine an aftermarket tune changing the level of emissions at idle to the point the car would fail. If you removed the cats from the exhaust that would be a different story, but I would think just a tune would be okay.