Can a Stage 1 Tune Pass the Annual Inspection?

1 Answers
McNaomi
07/30/25 3:05am
Can a Stage 1 Tune Pass the Annual Inspection? Many car owners choose to enhance their vehicle's performance through a Stage 1 tune, which alters the engine's parameters, primarily adjusting fuel injection quantity, ignition timing, and air intake volume. However, not all vehicles are suitable for a Stage 1 tune, as some models may not show significant improvements after the modification. While a Stage 1 tune only changes the engine's parameters and does not affect passing the annual inspection, it is not recommended for owners to boost their car's performance this way due to the drawbacks outweighing the benefits. If the car is driven under extreme conditions, it may develop some malfunctions, and in severe cases, these could become difficult to repair.
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