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Thread: X pipe help
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post #13 of (permalink) Old 10-11-2015
V6 Member
S197 Member
Joined: Mar 2009
Location: Sussex County
Posts: 115
Originally Posted by Norm Peterson View Post
Actually, it's the other way around.

The reason that the X does a better job of equalizing flow is because the crossover paths are far 'gentler' in the X and offer less restriction to the crossing flows.

I've tested both, there is no "Crossing Flow" on an H-Pipe. It's a straight connection pipe to either side that allows flow to balance as needed. The X-Pipe's converge point leads to back pressure that doesn't allow the exhaust to balance freely, thus imbalance is more of a possibility. The X-Pipe's converge point "Forces" the flows to meet, the H-Pipe's connector "Allows" it, so saying the X-Pipe is 'gentler' isn't true all all. It's why H-Pipes are great for those that run on the track & generally spend most of the time at higher speeds, balanced/quicker/easier exhaust flow. However X-Pipes have that back pressure which is ideal for low end applications, such as from a stop. Amercainmuscle has their description backwards, they claim H-Pipes are better suited for low end.

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