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I can’t recall any JB4 Qs getting into the threes. Maybe with the right supporting mods, tires, and conditions. But once that much is put into the car, you might as well get a tune and take full advantage of those mods.
 

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Racebox is highly recommended. If you wanted to tune yourself, HPT is very affordable and I’ve been told has great customer service to help you with it.
 
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