Quote:
Originally Posted by Tipin4moe
Have you had any engine issues with your mods and not running the tune? I have so far ? Or did you end up tuning your Z?
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The rule-of-thumb is that you only
need a tune if you make both intake and exhaust mods. The ECM will usually compensate enough to protect the engine if only one side is changed. However, many people think a tune is well worth the time/expense - even with no mods - due to better throttle feel, better shifting, more power, etc.