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THEY HARDLY NEED IT!! don't listen to syno the heads flow so damn much it's pointless. It won't hurt unless you are oversizing the ports and then you will lose
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12-09-2014, 06:23 PM
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A True Z Fanatic
Join Date: Aug 2009
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THEY HARDLY NEED IT!! don't listen to syno the heads flow so damn much it's pointless. It won't hurt unless you are oversizing the ports and then you will lose low end velocity. Your money is better spent in other places.
Edit: just for reference the factory heads build power past 9,000 rpm with different exhaust cams, and they outflow the nismo de race heads by a wide margin.
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