2008 silverado bolt on performance tips?
#2
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Boring out cylinders isn't bolt on performance.
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You can't bore out a computer controlled fuel injected engine without re-tuning it. How are you going to custom tune your PCM? And you can't just send your PCM out for a canned tune. It must be done in vehicle. Otherwise, you are wasting time and money.
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#6
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If you know enough about all that, then why are you here asking questions then? Seems you already know everything.
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