If you aren't throwing any codes then I don't think you have anything to worry about. They cost $20, just go get it done and see what the results are. If you fail you have 30 days to repair and have it retested for free. To answer your question there is no "tuner friendly" emissions shop. For emissions they hook up your car and it's all communicating with a database. I've been in tuned cars for over a decade and only had issues when throwing a cel.
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