X pipe, H pipe or straight through???

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killacam1881

New member
I recently got my exhaust done and I went straight back on both sides. No connection in the middle. Just curious to what other people have done and whats the pros and cons?
 
I went with an "H" pipe myself.

One thing though.
I'm learning slowly about "Y" / "X" / "H" placement in the system.
My new "H" was put in much further forward than the original spot. This might make a difference. What difference? That's a new area for me.
I have learned that on a Dodge LX body, the placement of the "X" of a V8, and a "Y" on a V6, DOES get calculated by engineers for proper placement. It's not a random thing. They are not just placed in the exhaust system anywhere. There is reason for where they are placed.
I sometimes wonder if my "H" was placed where it was origianlly, if my Marauder would feel different. (I don't have the money to just screw-around with placement though).
 
An "H" pipe or "X" pipe are needed to help scavenge out the exhaust gases. The motor has a 90degree crank which basically means some cylinders on each bank are firing directly after each other, the gases then are moving down the pipe and colliding with each other when they get to the muffler. An "H" or "X" pipe allows the gases to choose the path of least resistance, helping out the flow. When you get behind a car with straight pipes the exhaust kind of sounds "uneven" in the left to right banks. When there is an "H" or "X" pipe the sound is more even between the banks.
 
ctrlraven said:
An "H" pipe or "X" pipe are needed to help scavenge out the exhaust gases. The motor has a 90degree crank which basically means some cylinders on each bank are firing directly after each other, the gases then are moving down the pipe and colliding with each other when they get to the muffler. An "H" or "X" pipe allows the gases to choose the path of least resistance, helping out the flow. When you get behind a car with straight pipes the exhaust kind of sounds "uneven" in the left to right banks. When there is an "H" or "X" pipe the sound is more even between the banks.
Click to expand...

+1........

I went with a custom X pipe.
 
I've heard the closer to the engine the balance pipe is, the better. I believe the setup you have is called divorce pipes. That's really only beneficial on short exhaust systems such as open headers, side pipes (maybe), and rear engine cars. In the divorce setup, the engine has to pull air all the way down the length of the car to achieve balance which will cost you power. If you already have a whole exhaust put together like this, I would do an H setup over the X simply because it's easier to implement. Less piping to redo. Just slap a pipe between the two as close to the engine as is feasible, preferably in a spot where the pipe can be short.
 
Personally I would not have done a straight pipe exhaust setup.

I'm using a Prochamber which is a combination of both an H and X pipe
 
"H" pipe on mine with 50-series Flowmasters...Do NOT love the sound. Although it does sound deeper and more "musclecar-like" than the X-pipe and Magnaflows it had, it now has a weird resonance around 2300 rpm and kinda drones on the highway. I recently got hold of the the dampers that bolt into the flange in front of the mufflers, and also a set of clamp-on ones, so I'm-a experiment with them and see it that helps.
 
Hmmm I'm wondering if I should go back and have them slap a pipe in-between the two? So since the pressure is uneven is that bad on the motor? And what's the power difference
 
I have divorce pipes on my other car. It's no big deal, you have a piston pushing the air out, it's just a little harder to push out. I don't think you're going to see any really noticeable gain, maybe 2-3 HP. Do it if you like the sound better.
 
killacam1881 said:
Hmmm I'm wondering if I should go back and have them slap a pipe in-between the two? So since the pressure is uneven is that bad on the motor? And what's the power difference
Click to expand...
It's gonna cost next to nothin' to have a piece of pipe welded in between to create an "H".
For the price of having it done, you could always just have it removed if you don't like it.
It's not major surgery.
 
I have Flowmaster 40s with no rear cats and an H pipe. I took a vid of what it sounds like inside the car, it's kind of boring, but it gives you an idea.

http://www.youtube.com/watch?v=6Oz1D_AiTJI

Most of it is just cruising around, but I punch it a little at 2:19 and right at the end of the vid.
 
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