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Just wondering if tearing out a head, and doing a PnP on it, if it requires a new tune? We did it on my cousins civic a year ago and it made a H[:)][:)][:)][:)][:)][:)][deviltail] of a difference in power and reaction in the engine.
 

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Sückn' n Blown
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7,747 Posts
If you are going to PnP, I hope have supporting modifications to work with the increased flow, which would require a tune.
 
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