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Old 08-14-2017, 11:42 PM   #1
Inspiro
 
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X-pipe vs H-pipe vs True Dual

Hi all
I'm installing dynatech LTH on my 2012 SS, they only offer intermediate pipes (catted or straight, a couple of sizes available), these are supposed to connect directly to the remaining exhaust system
In terms of flow and power, is it a much better decision to go fabricate an X-pipe or H-pipe instead, or even go with a true dual exhaust system if this is an option?
And will these options make the sound much louder; I really don't want any noise, but I'm not sure though how much power this semi-sleeper will cost me

Thanks in advance
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Old 08-15-2017, 12:46 AM   #2
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Everything you could want to know haha

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Old 08-15-2017, 12:50 AM   #3
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Yep.
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Old 08-15-2017, 12:31 PM   #4
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You want some form of cross-over, whether it be an H or an X. Power wise you find a very in-significant difference between the two. The noise, however, is very different. The factory H pipe produces (to me) a very pleasant "lublublub" typical to a muscle/American v8. It has that nice pulse typically associated with an "old-school" sound. When you're hard in the gas and the revs are up it has a nice growl to it.

The X pipe pretty much completely loses that "lublublub" pulse that you get with an H pipe, it sounds much smoother, a little more exotic, definitely less "muscle car". And when you stand in the gas they really wail, it's a bit more violent, almost shredding sounding scream.

I actually prefer the H-pipe sound myself - alas the previous owner spend all sorts of money on this nice American Racing X-Pipe, and I can't bring myself to remove it. It's a trade-off really, driving around easy the H-pipe shines for beautiful noise, however it's hard to beat the scream of the X-pipe at full song.
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Last edited by acammer; 08-15-2017 at 05:32 PM.
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Old 08-15-2017, 05:08 PM   #5
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Quote:
Originally Posted by acammer View Post
You want some form of cross-over, whether it be an H or an X. Power wise you find a very significant difference between the two. The noise, however, is very different. The factory H pipe produces (to me) a very pleasant "lublublub" typical to a muscle/American v8. It has that nice pulse typically associated with an "old-school" sound. When you're hard in the gas and the revs are up it has a nice growl to it.

The X pipe pretty much completely loses that "lublublub" pulse that you get with an H pipe, it sounds much smoother, a little more exotic, definitely less "muscle car". And when you stand in the gas they really wail, it's a bit more violent, almost shredding sounding scream.

I actually prefer the H-pipe sound myself - alas the previous owner spend all sorts of money on this nice American Racing X-Pipe, and I can't bring myself to remove it. It's a trade-off really, driving around easy the H-pipe shines for beautiful noise, however it's hard to beat the scream of the X-pipe at full song.
Did you mean insignificant

And I agree with you. I prefer the sound of the H-pipe over the X for the reasons you've stated. But unfortunately most of the good after market catbacks utilize the X pipe instead. Just one of those trade off's I guess
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Old 08-15-2017, 05:32 PM   #6
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Originally Posted by Gunmetal Speedster View Post
Did you mean insignificant

And I agree with you. I prefer the sound of the H-pipe over the X for the reasons you've stated. But unfortunately most of the good after market catbacks utilize the X pipe instead. Just one of those trade off's I guess
Fixed it, good catch!
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Old 08-15-2017, 06:10 PM   #7
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Fixed it, good catch!
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Old 08-15-2017, 06:42 PM   #8
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Quote:
Originally Posted by acammer View Post
You want some form of cross-over, whether it be an H or an X. Power wise you find a very in-significant difference between the two. The noise, however, is very different. The factory H pipe produces (to me) a very pleasant "lublublub" typical to a muscle/American v8. It has that nice pulse typically associated with an "old-school" sound. When you're hard in the gas and the revs are up it has a nice growl to it.

The X pipe pretty much completely loses that "lublublub" pulse that you get with an H pipe, it sounds much smoother, a little more exotic, definitely less "muscle car". And when you stand in the gas they really wail, it's a bit more violent, almost shredding sounding scream.

I actually prefer the H-pipe sound myself - alas the previous owner spend all sorts of money on this nice American Racing X-Pipe, and I can't bring myself to remove it. It's a trade-off really, driving around easy the H-pipe shines for beautiful noise, however it's hard to beat the scream of the X-pipe at full song.

My x-pipe definitely brought about a higher-pitched scream at WOT, rather than a low growl. But being paired with a Borla ATAK system, still has a nice low-pitched rumble at low speeds/rpms.
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Old 08-16-2017, 02:54 PM   #9
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1 7/8 Headers and off road x pipe
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Old 08-16-2017, 03:14 PM   #10
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Originally Posted by lazerlemonta View Post


1 7/8 Headers and off road x pipe
That sounds familiar!
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Old 08-16-2017, 03:19 PM   #11
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Originally Posted by acammer View Post
That sounds familiar!
Its a shame it no longer exists
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Best ET 10.58 @ 131.8 stock heads and stock cam 453/445 SAE
10.62@134.82 GPI 281CC Heads, SS4 Cam and X1 Intake
Best 1/8 6.80@105.75
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Old 08-16-2017, 05:16 PM   #12
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Your car comes with a stock H pipe in if you have the l99 your resonator....what is unaffectionately know as the "suitcase", if your a manual you have a simple H pipe. No need to switch to another pipe, unless you want to get louder or less annoying with a automatic rattle from what ever....the resonator quiets it some with noise from AFM/DOD.... Just a couple facts, I used to own a l99 2ss vert 2011... And you would be better with high flow cats a little for the rasp and exhaust stench of gasoline...let alone being legal here in the states.
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