Quote:
Originally Posted by serialk11r
It's the length that matters, because the air will pick up velocity and then as the valve shuts a wave starts to travel in the opposite direction at the speed of sound.
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oOo you and Dim might be right. Im looking at other dyno comparisons of the EJ251 with different headers. Never really paid attention to acoustics until now.
This short OEM EL like this sees that awkward dip at 3000-4000
This longer OBX EL header smoothens out that 3k-4k dip on some dynos im looking at from other members.
