What is the advantage of having headers with tight 90 degree turns in the tubes that close to the exhaust ports and unequal length tubes from the flanges to the collector? I'd like to see some dyno numbers comparing them to stock exhaust manifolds like rams' horns. If there's any advantage at all, I'm going to guess it happens at RPM ranges the average street-driven engine seldom runs, if at all.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
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