..X for flow.... 
Does it matter how long the pipe is in the H pipe?
Does it matter how long the pipe is in the H pipe? Does it matter how long that balance pipe is? Mine will be probably 2 inches from pipe to pipe.
Oh, and should I make the H pipe 3" or 2.5"? It will come from a 3" to 2.5" somewhere around there.
Oh, and should I make the H pipe 3" or 2.5"? It will come from a 3" to 2.5" somewhere around there.
sounds good to me. Mine will be where every one else puts theirs. My exhaust guy is trying to get me to buy a magnaflow X pipe he has at the shop. He's telling me what I already know about the x pipe. I've wanted an H pipe, and i'm stickin' to it! It'll be cheaper than buying that thing anyways. I think he just doesn't wanna build it. 
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Joined: Jun 2005
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From: England
Originally Posted by HotWhipT/A
I usually do read them. That was long as hell though. It talked mostly about the X pipes!!!
Originally Posted by David Vizard
Balance pipe sizing seems not to be overly critical. The only really influential dimension is the pipe diameter. This needs to have an area at least equal to that of a 2.25-inch diameter pipe (4 square inches) with 2.5 to 2.75 inches being preferable. Though limited to tests on engines up to a little fewer than 600 hp, there seems to be no measurable benefits to using a crossover pipe bigger than 2.75 inches in diameter. As for the crossover length, dyno results indicate that 18 inches responds in virtually the same manner as 72 inches long.
