Quote:
Originally Posted by cdrazic93
yes, but I am not well versed in manifolds, so I'm not sure why a 4-2-1 would be better than a 4-1 style.
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I'm in no way versed in the art of exhaust design or flow dynamics. My guess would be a 4-2-1 header on a FI car would allow for a more efficient, gradual, and less turbulent merge of exhaust pulses going into the exhaust housing for better spool.