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Dash Cam Guy
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2,277 Posts
Discussion Starter #1
I did a search and did not find a thread on this. I am thinking about having a custom 3" exhaust fabbed up for my car. My question is, should I go with an X pipe or an H pipe or even a true dual set up? I have read that the X pipe will be a little quieter than the H. I have also seen Mustang dyno charts that showed a loss of low end hp and tq with the X pipe, but a higher top end hp and tq. I think a proper X pipe helps with scavenging at higher rpm thus the increase. I looked at some pictures of bolt up systems. Flowmaster seems to use an H. I think the Corsa was close to an X design which may be what eliminates drone. What do you guys think?
 

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73 Posts
Believe Magnaflow and Kook sell X pipes.
Here is a Mustang video I found comparing H versus X pipes on a stock GT:
http://youtu.be/OvBjesPpNT0

Here is a good video from Summit Racing on X versus H pipes. http://youtu.be/Y0Va3sDhqwI

the summit racing video explains alot.
but
i dont think that the mustang video gives a true comparison.
does the stock h pipe on a mustang have cats ?

my brother in law had a 2000 GT and he had an off road H pipe and flowmaster mufflers and the car sounded mean.

all exhausts i have seen for the challengers have had an X pipe.
 

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36 Posts
I have the X pipe which came with the 6speed system I run. I also have a balance tube after the cats from when I ran a custom Magnaflow system, so I run both. Smooth sound you would not believe.
 

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Premium Member
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12,168 Posts
I have headders and the BORLA ATAK which is an X pipe system no drone at all...
 
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