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Old 12-21-2015, 06:05 PM   #6 (permalink)
aerohead
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torque

HOT ROD Magazine did an article about exhaust headers,and they wrote that it was the header primary tubes which were responsible for the engine's torque,which mirrored the unit air charge,which reacted to scavenging during valve overlap.
If you already have variable valve timing,HONDA may have already optimized all the manifolds for the operational driving range.
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