Any install a H Pipe - The 1947 - Present Chevrolet & GMC Truck Message Board Network

motocrosschump · 10-06-2005, 05:11 PM

Was you satisfied with the outcome..

My truck seems to run and sound better without it..

Just wanted to hear someone elses experiences

cst70rocket · 10-06-2005, 05:23 PM

H pipe is older technology. X pipe is where there is some difference to be noticed. Although, I've got an H pipe on my ride

It also depends where you put it, how it was welded in, etc. Also, carb may need re-tuned to optimize this. It quietened mine down considerably,took some of the cam chop out, but performance was/is exactly the same.
Kirk

djracer · 10-06-2005, 06:12 PM

I've had them on all my trucks! Butter didn't have one on his truck and was ready to change mufflers untill I talked him into trying one!

86swb · 10-06-2005, 06:19 PM

How does the H pipe quiet the exhaust down. I do not understand.

Without the H pipe the exhause would be louder?

djracer · 10-06-2005, 06:45 PM

Butter's exhaust was real raspy sounding without. But it sounds much more smooth with the h pipe!

cst70rocket · 10-06-2005, 07:28 PM

Yea it equalizes the exhaust pulses, really tones it down, makes that big cam sound like a mild cam. Works great on the street.
Kirk

86swb · 10-06-2005, 07:31 PM

In what way is the X pipe better than the H pipe? Does it also quiet it down?

72MARIO · 10-07-2005, 08:21 AM

I am planning on putting a H pipe in my system. Does it matter where it goes ? I cant really fit it till the back of the tail shaft on the tranny. I kinda like how loud my truck is.
It's good because when people hear me coming they get out of the way.

chevyfarmer · 10-07-2005, 08:32 AM

No expert here, as I have not put one in any of my exhaust systems YET. I have read the proper location to install the pipe is found by having all the exhaust work done minus the h pipe first. Then draw lines down each exhaust pipe with a wax based marking pencil (like a red china marker) between the manifolds or collector to the mufflers. Then drive the vehicle around a bit, get it up to operating temperature, and shut it off. Supposedly the most optimum spot for the h pipe will be where the wax marks on the pipe stopped melting off...... ?? Read it in Hot Rod magazine about a year ago.

86swb · 10-07-2005, 08:35 AM

Now that is very interesting.

Wonder why there?

PICKMUP · 10-07-2005, 12:09 PM

H or X pipe seems to have very minimal effect on the vehicle. I can never tell any difference, although it is supposed to improve torque. It is usually 4 or 5 hp...not worth it for the cost & work & clearance problems to me.
I do use them to quiet down or change the loud zones in Flo-Master type systems if they are annoying. I had a BB sub that just reververated inside at 60-70 mph...the H pipe moved the roar down to about the 30 mph area...then it was kind of fun, because you could drive through it and then travel down the road in reasonable quiet.
I have a 350 that had a nice low sound in the exhaust, until a temporary owner added an H pipe. Now it sort of "buzzes"...really bad sound.

10-06-2005, 05:11 PM	#1
motocrosschump Registered User Join Date: May 2005 Location: Texarkana, AR 71854 Posts: 397	Any install a H Pipe Was you satisfied with the outcome.. My truck seems to run and sound better without it.. Just wanted to hear someone elses experiences __________________ 2006 Titan SE Crew Cab Daily Driver 2005 Mazda Tribute (Wifes car) 1969 C10 SWB 350/3 Fleet "Max" 1969 Chevelle 2 door 350/3

10-06-2005, 06:12 PM	#3
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,894	I've had them on all my trucks! Butter didn't have one on his truck and was ready to change mufflers untill I talked him into trying one! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

10-06-2005, 06:19 PM	#4
86swb Born a Chevy Man Join Date: Apr 2005 Location: Navarre, Florida Posts: 10,221	How does the H pipe quiet the exhaust down. I do not understand. Without the H pipe the exhause would be louder? __________________ John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 1986 Chevy SWB Silverado 1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS

10-06-2005, 06:45 PM	#5
djracer Registered User Join Date: Feb 2001 Location: Wetumpka, Al, U.S. Posts: 8,894	Butter's exhaust was real raspy sounding without. But it sounds much more smooth with the h pipe! __________________ Kevin Special Thanks to All who have helped on the TRUCK! My Pass Time Show http://s129.photobucket.com/albums/p...Chapter1-0.mp4 So Far my best Times are: Motor only: 6.44 1/8 @ 104.13 10.39 1/4 @ 125.83 Nitrous Times: 5.785 1/8 @ 118.65 with a 1.336 60ft 9.168 1/4 @ 142.58 with a 250 shot dead out of the hole!

10-06-2005, 07:31 PM	#7
86swb Born a Chevy Man Join Date: Apr 2005 Location: Navarre, Florida Posts: 10,221	In what way is the X pipe better than the H pipe? Does it also quiet it down? __________________ John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 1986 Chevy SWB Silverado 1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS

10-06-2005, 05:23 PM	#2
cst70rocket Registered User Join Date: Sep 2005 Location: San Angelo or Eufaula Posts: 301	H pipe is older technology. X pipe is where there is some difference to be noticed. Although, I've got an H pipe on my ride It also depends where you put it, how it was welded in, etc. Also, carb may need re-tuned to optimize this. It quietened mine down considerably,took some of the cam chop out, but performance was/is exactly the same. Kirk

10-06-2005, 07:28 PM	#6
cst70rocket Registered User Join Date: Sep 2005 Location: San Angelo or Eufaula Posts: 301	Yea it equalizes the exhaust pulses, really tones it down, makes that big cam sound like a mild cam. Works great on the street. Kirk

10-07-2005, 08:21 AM	#8
72MARIO Registered User Join Date: Nov 2000 Location: Huntsville Ontario Canada Posts: 4,051	I am planning on putting a H pipe in my system. Does it matter where it goes ? I cant really fit it till the back of the tail shaft on the tranny. I kinda like how loud my truck is. It's good because when people hear me coming they get out of the way. __________________ 1968 Suburban numbers matching all original truck now equipped with 6.0/4L80 on Accuair http://67-72chevytrucks.com/vboard/s...d.php?t=625017 1967 C/20 6.0/4L80 Roofing Truck 1990 V2500 Suburban "Plow Truck" 2005 TAHOE DD

10-07-2005, 08:32 AM	#9
chevyfarmer Registered User Join Date: Feb 2005 Location: Owosso, Mi Posts: 242	No expert here, as I have not put one in any of my exhaust systems YET. I have read the proper location to install the pipe is found by having all the exhaust work done minus the h pipe first. Then draw lines down each exhaust pipe with a wax based marking pencil (like a red china marker) between the manifolds or collector to the mufflers. Then drive the vehicle around a bit, get it up to operating temperature, and shut it off. Supposedly the most optimum spot for the h pipe will be where the wax marks on the pipe stopped melting off...... ?? Read it in Hot Rod magazine about a year ago. __________________ 67 short wide 355ci 3 on tree 69 short wide 250ci 3 on tree 68 long wide 283 3 on tree 72 2wd Blazer project 454 5 speed

10-07-2005, 08:35 AM	#10
86swb Born a Chevy Man Join Date: Apr 2005 Location: Navarre, Florida Posts: 10,221	Now that is very interesting. Wonder why there? __________________ John or 86 (Viet Nam combat Vet-BIG RED ONE) '65-'66 1986 Chevy SWB Silverado 1984 Chevy Longbed Silverado New Kia Sportage (Wife's car and she loves it) CHEVY, American made w/pride! If you can read this, YOU NEED TO THANK A TEACHER! If you can read this in ENGLISH, PLEASE THANK A SOLDIER! GOD BLESS AMERICA AND BLESS OUR FIGHTING TROOPS

10-07-2005, 12:09 PM	#11
PICKMUP "Trucks with Class" Join Date: Jul 2000 Location: OLYMPIA, WA, USA Posts: 8,168	H or X pipe seems to have very minimal effect on the vehicle. I can never tell any difference, although it is supposed to improve torque. It is usually 4 or 5 hp...not worth it for the cost & work & clearance problems to me. I do use them to quiet down or change the loud zones in Flo-Master type systems if they are annoying. I had a BB sub that just reververated inside at 60-70 mph...the H pipe moved the roar down to about the 30 mph area...then it was kind of fun, because you could drive through it and then travel down the road in reasonable quiet. I have a 350 that had a nice low sound in the exhaust, until a temporary owner added an H pipe. Now it sort of "buzzes"...really bad sound.



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