1. As long as things are in good functioning condition (tires, brakes, suspension, lights, ect) you shouldn't have a problem. Being turbo or NA has no bearing on it's ability to pass.
2. Backfires are not good, as for the revs as long as you are not over revving or staying in up in the range for long periods of time.
3. A catch can could be used on a NA application if you wanted to.
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