Opinions: H or X pipe?
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Staging Lane
Joined: Nov 2001
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From: Hayward, CA
Opinions: H or X pipe? I'm going with true duals into bullets and I've read all the past topics on true duals but I'm still undecided on which to go with. I wanna deep sound (which I heard the H pipe is better for) but still want a good flowing system (which I heard the X pipe is better for). Everyone's opinions are welcome. Thanks. Patrick
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Re: Opinions: H or X pipe? I went with the X myself....and i believe the exhaust pulses bouncing off one another balance something or another....or make the gas flow quicker....someone chime in and make me look smarter <img src="gr_images/icons/wink.gif" border="0">
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Re: Opinions: H or X pipe? [quote]Originally posted by PatrickZ28:
<strong>Verbs, I saw the pic of your exhaust in the other topic, are those the 18" Dynomax bullets? or 12? How's the deepness sound of your system? Thanks for the responses guys</strong><hr></blockquote>
18"ers......and the deepness blows the doors off of most heads/cam cars.....my car sounds like it has a cam when it doesn't.
At low RPM's it sounds like I have 10 liters of displacement.
<strong>Verbs, I saw the pic of your exhaust in the other topic, are those the 18" Dynomax bullets? or 12? How's the deepness sound of your system? Thanks for the responses guys</strong><hr></blockquote>
18"ers......and the deepness blows the doors off of most heads/cam cars.....my car sounds like it has a cam when it doesn't.
At low RPM's it sounds like I have 10 liters of displacement.
Re: Opinions: H or X pipe? I heard a Z28 with a pretty sizeable cam, Macs, ORP, H pipe, and Flowmasters dumped right before the axle, it sounds AWESOME. Prolly the best i've ever heard on an LS1. Very deep and around 2200-4,000 rpms (where Macs usually drone/rasp) the exhaust sounds almost hollow, kind of like a mustang. Hope that helps give you some ideas.
Chris <img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" />
Chris <img src="graemlins/gr_cheers.gif" border="0" alt="[cheers]" />
Re: Opinions: H or X pipe? Your answer to your question, has been answered. The X will make a little more HP & TQ than the H. The sounds are a little different. I believe there is a different rumble with the H, but the outcome of the sound you end up with will be determined by the muffler that you pick.
There are 2 articles that talk about the H & X, and back them up with dyno test. Hot Rod, June 2001 issue, and Hot Rod, Oct. 2000.
There are 2 articles that talk about the H & X, and back them up with dyno test. Hot Rod, June 2001 issue, and Hot Rod, Oct. 2000.
Thread Starter
Staging Lane
Joined: Nov 2001
Posts: 71
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From: Hayward, CA
Re: Opinions: H or X pipe? Verbs, I saw the pic of your exhaust in the other topic, are those the 18" Dynomax bullets? or 12? How's the deepness sound of your system? Thanks for the responses guys
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Thread Starter
Staging Lane
Joined: Nov 2001
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From: Hayward, CA
Re: Opinions: H or X pipe? Thanks for all the replies guys, looks like I'll be going with the X. Although I want the deepness of the H, it looks like I'll be achieving almost the same thing with the X. Thanks again guys
By the way, does my setup warrant going with 3" dual piping? I just have mildy ported heads(2.02/1.57), Hotcam and Macs. Thanks again
[ February 08, 2002: Message edited by: PatrickZ28 ]</p>
By the way, does my setup warrant going with 3" dual piping? I just have mildy ported heads(2.02/1.57), Hotcam and Macs. Thanks again
[ February 08, 2002: Message edited by: PatrickZ28 ]</p>
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The difference between X pipe and the H pipe is only about 1&3/4 horsepower with the H pipe having about 1/2 ft lbs. more torque but the difference in sound quality is HUMONGOUS ! Ever heard a Ford with a X pipe ? Just doesn't sound near as good . All ford V8's come from the factory with an H pipe and thats why they sound soooo good ! Try to remember that if your going through all the trouble & expense of true duals .
Tech Resident
Joined: Jan 2006
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From: Philly
Originally Posted by PatrickZ28
I'm going with true duals into bullets and I've read all the past topics on true duals but I'm still undecided on which to go with. I wanna deep sound (which I heard the H pipe is better for) but still want a good flowing system (which I heard the X pipe is better for). Everyone's opinions are welcome. Thanks. Patrick
the gains are due to scavenging. it has nothing to do with flow. the midpipes cause the exhaust to escape faster, and higher exhaust velocity gives you more power.
an H-pipe will outperform an X-pipe down low. expect a much more torquey feel from an H-pipe. for peak dyno numbers, the X-pipe will outperform the H-pipe and likely show a little stronger performance at the track. ask yourself where you'd rather have the power: down low or up top. personally, i'd pick an H-pipe because i want the car to feel stronger down low where i spend 99% of my time since it's my daily driver. running a tenth faster is meaningless to me if the car has less bite around town.
an H-pipe will also produce a lower rumble, so if you want deep, an X-pipe is not the way to go. i'm a firm believer that a track car needs an X-pipe and a daily driver/weekend car that spends almost all its time on the street needs an H-pipe. plus, i think H-pipe cars sound A LOT better.
EDIT - well i feel like a dumbass...a 5 year old thread...who keeps resurrecting these old threads? this is the third 4+ year old thread i've posted in in the past week!
rather than delete my post, i'll leave it up for the sake of information. maybe someone on the edge will read it and gain something from it, 
Originally Posted by ChocoTaco369
an X-pipe doesn't flow any better than an H-pipe. an X-pipe and an H-pipe don't flow as well as open headers, but they've both been shown to add gains over open headers, especially the X-pipe (with a good design, that is).
the gains are due to scavenging. it has nothing to do with flow. the midpipes cause the exhaust to escape faster, and higher exhaust velocity gives you more power.
an H-pipe will outperform an X-pipe down low. expect a much more torquey feel from an H-pipe. for peak dyno numbers, the X-pipe will outperform the H-pipe and likely show a little stronger performance at the track. ask yourself where you'd rather have the power: down low or up top. personally, i'd pick an H-pipe because i want the car to feel stronger down low where i spend 99% of my time since it's my daily driver. running a tenth faster is meaningless to me if the car has less bite around town.
an H-pipe will also produce a lower rumble, so if you want deep, an X-pipe is not the way to go. i'm a firm believer that a track car needs an X-pipe and a daily driver/weekend car that spends almost all its time on the street needs an H-pipe. plus, i think H-pipe cars sound A LOT better.
EDIT - well i feel like a dumbass...a 5 year old thread...who keeps resurrecting these old threads? this is the third 4+ year old thread i've posted in in the past week! rather than delete my post, i'll leave it up for the sake of information. maybe someone on the edge will read it and gain something from it,
the gains are due to scavenging. it has nothing to do with flow. the midpipes cause the exhaust to escape faster, and higher exhaust velocity gives you more power.
an H-pipe will outperform an X-pipe down low. expect a much more torquey feel from an H-pipe. for peak dyno numbers, the X-pipe will outperform the H-pipe and likely show a little stronger performance at the track. ask yourself where you'd rather have the power: down low or up top. personally, i'd pick an H-pipe because i want the car to feel stronger down low where i spend 99% of my time since it's my daily driver. running a tenth faster is meaningless to me if the car has less bite around town.
an H-pipe will also produce a lower rumble, so if you want deep, an X-pipe is not the way to go. i'm a firm believer that a track car needs an X-pipe and a daily driver/weekend car that spends almost all its time on the street needs an H-pipe. plus, i think H-pipe cars sound A LOT better.
EDIT - well i feel like a dumbass...a 5 year old thread...who keeps resurrecting these old threads? this is the third 4+ year old thread i've posted in in the past week!
rather than delete my post, i'll leave it up for the sake of information. maybe someone on the edge will read it and gain something from it,
Originally Posted by jrp
dude, seriously. this thread is over 5 yrs old. Also the 5.0's were iron block and had a different firing order which contribute to there different sound.
Good grief. Not only are we getting the same old crap asked a zillion times in these threads, now they are digging up 5 year old threads and debating the same old crap over again. Give it a rest already.
Tech Resident
Joined: Jan 2006
Posts: 5,117
Likes: 3
From: Philly
Originally Posted by Yahelou
actually to help u feel better, ur info helped me alot. actually it is so good, that it convinced me to go with an H-pipe. just wanted u to know that it didnt go to waste.
best of luck.
