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Techo Question: X pipe vs H pipe

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rebel:
I know the purpose of the x-pipe, is to equalize the pressure in both pipes thereby making more power available, especially low end torque.  But does anyone know how this differs from H pipe designs and what the benefits are ... ? ;ay

Thanx ...

77CVT:
An X pipe is a step up from an H pipe.  An H pipe or balance pipe will balance the exhaust pulses evenly between the two pipes, giving a mellower sound.

An X pipe does the same thing but better - that's about all I know.  ;laugh

In a 'vette, the best place is just behind the crossmember.

Both give better low end torque and heaps better sound.  If getting an X pipe, ask how they make it as a few leave the inside surface eneven with welds etc.

Check this article - http://www.autospeed.com/A_0608/page1.html

EDIT: I found this in my travels.

"X-Pipes - Function of an x-pipe is to synchronize the exhaust pulse by merging separate banks together lessening back pressure and increasing scavenging, in result a horsepower and torque increase from 2-10% depending on the application is obtained through out the entire RPM range.
The x-pipe will lower decibel levels 2-3 dbs for a more quality exhaust note.

H-Pipes - Function of a H-Pipe is to equalize pressure between banks in return the vehicle will gain more low and torque and gain in sound quality.
In Race applications the use of a balance pipe is recommended for sound control and extra volume for negative back pressure.

Y-Pipes - Function of a Y-Pipe is used to increase low and mild range torque and horsepower. Y-pipes are used when tight working area's are a factor.";;"1042583502

rebel:
Great report thanx !! You've been escalated to exhaust expert!

Now throw some cat's into the mix .... obviously a change in tone and power but any other remafications .. ?

77CVT:
"Now throw some cat's into the mix .... obviously a change in tone and power but any other remafications .. ?

Adam:

--- Quote ---Originally posted by 77CVT
"Does my 1984 Mazda 323 require a cat when I run it on inleaded?  I don't think so.
--- End quote ---

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