Quote:
Originally Posted by edub370
but all except one have a form of x, h, or y pipe. they all do the same thing
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No...
Necking down to a single via a Y pipe is not the same as an H pipe (two pipes with a cross-flow pipe for equalization) or a conservative X pipe design like Fast Intentions or Berk/Invidia.
That said, the Magnaflow solution does reduce total system flow to basically one pipe diameter since the paths actually cross, but even then I don't believe the flow would be as restricted as being reduced to a single cohesive stream. I still wouldn't pick this design for those reasons though.
At any rate, go with what you like, most people don't really dyno test parts or care if they're a few WHP one way or the other, and why should they? Go with what looks or sounds better to you, that's what really matters.
I just like to talk tech, about pretty much everything.