C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

"H" PIPE EXHAUST SYSTEMS????????

Thread Tools
 
Search this Thread
 
Old Apr 14, 2003 | 01:27 PM
  #1  
GRAYGHOST's Avatar
GRAYGHOST
Thread Starter
Advanced
10 Year Member
 
Joined: Jun 2002
Posts: 83
Likes: 0
From: ST AUGUSTINE FL
Default "H" PIPE EXHAUST SYSTEMS????????

I've noticed that in the desciptions of many of your cars, there is something
called an "H" pipe. I've figured out what they look like from some of the
adds in the various magazines I subscribe to but I would really like to know
what exactly they do for performance? Educate me , please.


[Modified by GRAYGHOST, 6:28 PM 4/14/2003]
Reply
Old Apr 14, 2003 | 01:46 PM
  #2  
norvalwilhelm's Avatar
norvalwilhelm
Race Director
10 Year Member
 
Joined: Nov 2000
Posts: 11,872
Likes: 12
From: Waterloo ontario Canada
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (GRAYGHOST)

The H pipe helps increase torque, cuts down some of the drooning in the exhuast and make both sides of the exhaust available to the other side.
This is a shot of my H pipe.
Reply
Old Apr 14, 2003 | 03:47 PM
  #3  
GRAYGHOST's Avatar
GRAYGHOST
Thread Starter
Advanced
10 Year Member
 
Joined: Jun 2002
Posts: 83
Likes: 0
From: ST AUGUSTINE FL
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (norvalwilhelm)

Great picture! Thanks a lot for the enlightenment!
Reply
Old Apr 14, 2003 | 04:26 PM
  #4  
Aaron-74's Avatar
Aaron-74
Drifting
 
Joined: Mar 2001
Posts: 1,896
Likes: 0
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (GRAYGHOST)

Here's mine. It's welded right after the cross-member.

Reply
Old Apr 14, 2003 | 04:39 PM
  #5  
mvftw's Avatar
mvftw
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Feb 2003
Posts: 2,330
Likes: 6
From: Long Island NY
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (GRAYGHOST)

Are there H-Pipe kits, I've only found duals, if no H-pipe. My local shop wants $750 for duals & H-pipe, a little pricy for me...
Reply
Old Apr 14, 2003 | 04:40 PM
  #6  
Alwyn678's Avatar
Alwyn678
Team Owner
 
Joined: Jun 2001
Posts: 43,136
Likes: 155
From: Thomson Georgia
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (mvftw)

Are there H-Pipe kits, I've only found duals, if no H-pipe. My local shop wants $750 for duals & H-pipe, a little pricy for me...
Damn I gt mine done for 175 :eek:
Reply
Old Apr 14, 2003 | 04:43 PM
  #7  
Aaron-74's Avatar
Aaron-74
Drifting
 
Joined: Mar 2001
Posts: 1,896
Likes: 0
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (Alwyn678)

I got 2.5 aluminized pipes with an H-pipe fully welded and sealed (no tips, just down turned) for 300.00$ Tips were another 50.00$ which I plan to get soon..700.00$ and it better be mandrel bent and fully custom. :bs
Reply
Old Apr 14, 2003 | 05:00 PM
  #8  
mvftw's Avatar
mvftw
Melting Slicks
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Feb 2003
Posts: 2,330
Likes: 6
From: Long Island NY
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (Aaron-74)

That's why I asked, I'm going to get the Mid-America kit for $300 (duals - no H), but I'm going to look around for better pricing first...
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-1

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-2

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-3

Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

 Michael S. Palmer
story-4

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-5

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-6

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-7

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-8

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-9

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
Old Apr 14, 2003 | 05:53 PM
  #9  
79VetteMike's Avatar
79VetteMike
Melting Slicks
 
Joined: Jan 2003
Posts: 2,804
Likes: 1
From: OKC Oklahoma
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (mvftw)

Are there H-Pipe kits, I've only found duals, if no H-pipe. My local shop wants $750 for duals & H-pipe, a little pricy for me...
That is a rip off. Find someone else to do it.
Reply
Old Apr 14, 2003 | 05:55 PM
  #10  
79VetteMike's Avatar
79VetteMike
Melting Slicks
 
Joined: Jan 2003
Posts: 2,804
Likes: 1
From: OKC Oklahoma
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (mvftw)

I have the Mid America 2.5" dual set up on my 1979 that I am willing to sell and it has the H pipe installed from a local shop. Oh yeah, it is fully welded with Flowmasters 40 series. I did cut it to drop my rear diff though.
Reply
Old Apr 14, 2003 | 08:09 PM
  #11  
vettfixr's Avatar
vettfixr
Le Mans Master
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 1999
Posts: 9,206
Likes: 17
From: Sewell NJ
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (GRAYGHOST)

The H pipe typically improves low end torque and quiets the system a bit. Here are a few pics of my setup with Dynomax headers.





[Modified by vettfixr, 8:09 PM 4/14/2003]
Reply
Old Apr 14, 2003 | 08:32 PM
  #12  
DaddyO's Avatar
DaddyO
Racer
 
Joined: Jan 2000
Posts: 472
Likes: 0
From: Warren NJ
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (79VetteMike)

How much are you looking to sell that for? Will it work on a stock 71? Easy to install?
Email me at: dan.fulop@gs.com
Reply
Old Apr 15, 2003 | 08:14 AM
  #13  
Ganey's Avatar
Ganey
Race Director
10 Year Member
 
Joined: Apr 1999
Posts: 11,520
Likes: 13
From: CORVETTE 77 385 C.I. TEXAS
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (GRAYGHOST)

I've noticed that in the desciptions of many of your cars, there is something
called an "H" pipe. ...
Also called a balance pipe. Rec.!
Reply
Old Apr 15, 2003 | 09:29 AM
  #14  
Twin_Turbo's Avatar
Twin_Turbo
Race Director
25 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Dec 1999
Posts: 16,945
Likes: 9
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (Ganey)

Rec.!
Why? All it does for certain is mellow out the exhaust note. I haven't seen dyno proof that a balance pipe makes more power. I like my exhaust loud, don't have a balance pipe. Furthermore, just putting in a bal;ance pipe won't do anything, you have to position it at a point where there's a "knot" in the longitudinal wave.
Reply
Old Apr 15, 2003 | 01:24 PM
  #15  
SCS Red80's Avatar
SCS Red80
Racer
15 Year Member
 
Joined: Jan 2003
Posts: 428
Likes: 0
From: Eagle River AK
St. Jude Donor '10, '13
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (vettfixr)

Man it seems the more I read on this whole topic the more confused I get. I have an 80 that I want to get duals on and get rid of the converter. I was going to just have the pipes run straight back from the original headers (for now) to Flowmaster 50's and then tips out the back. Will this work? Will there be clearance issues if the pipes run under (closer to the ground) the crossmember, or should I set it up like the MAD systems and run both pipes down the pass side? And now - what about an H pipe? Do I need one, and if so where would it go?
Thanks
Steve*
:flag
Reply
Old Apr 15, 2003 | 01:44 PM
  #16  
79VetteMike's Avatar
79VetteMike
Melting Slicks
 
Joined: Jan 2003
Posts: 2,804
Likes: 1
From: OKC Oklahoma
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (SCS Red80)

Man it seems the more I read on this whole topic the more confused I get. I have an 80 that I want to get duals on and get rid of the converter. I was going to just have the pipes run straight back from the original headers (for now) to Flowmaster 50's and then tips out the back. Will this work? Will there be clearance issues if the pipes run under (closer to the ground) the crossmember, or should I set it up like the MAD systems and run both pipes down the pass side? And now - what about an H pipe? Do I need one, and if so where would it go?
Thanks
Steve*
:flag
Is there one or two holes in your crossmember? If it has 2, I am moving to OKC in mid-June, and I would sell you my set up if you are interested. It's a Mid America kit with Flowmasters on it-sounds really nice-also has the H pipe.
Reply
Old Apr 16, 2003 | 12:38 AM
  #17  
SCS Red80's Avatar
SCS Red80
Racer
15 Year Member
 
Joined: Jan 2003
Posts: 428
Likes: 0
From: Eagle River AK
St. Jude Donor '10, '13
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (79VetteMike)

Mike,
Looks like no holes, just an indentation where the cat meets the front "Y" and then the rear "Y" takes off from the Cat to the exhaust.
Thanks for the offer, but I want to get this done soon, like next week - found a guy in town that will do all the pipes and the Flowmasters for $400.
BTW - you an AWO?

Steve
:flag
Reply

Get notified of new replies

To "H" PIPE EXHAUST SYSTEMS????????

Old Apr 16, 2003 | 07:42 AM
  #18  
79VetteMike's Avatar
79VetteMike
Melting Slicks
 
Joined: Jan 2003
Posts: 2,804
Likes: 1
From: OKC Oklahoma
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (SCS Red80)

That sounds like a decent deal. No, I'm not an AWO-I'm a 2M tech. I am assuming you are an AWO?
Reply
Old Apr 16, 2003 | 07:44 AM
  #19  
79VetteMike's Avatar
79VetteMike
Melting Slicks
 
Joined: Jan 2003
Posts: 2,804
Likes: 1
From: OKC Oklahoma
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (DaddyO)

How much are you looking to sell that for? Will it work on a stock 71? Easy to install?
Email me at: dan.fulop@gs.com
I don't think it will fit your car. It lists a different set in Mid America.
Reply
Old Apr 16, 2003 | 12:52 PM
  #20  
SCS Red80's Avatar
SCS Red80
Racer
15 Year Member
 
Joined: Jan 2003
Posts: 428
Likes: 0
From: Eagle River AK
St. Jude Donor '10, '13
Default Re: "H" PIPE EXHAUST SYSTEMS???????? (79VetteMike)

Yea your right, i just looked at the MAD web site and up to the 79 it looks like two holes available in the cross member, and mine is just a indentation around the center. Oh well like you said Im getting a pretty good deal.
No Im not a AWO, a WD - whats a 2M tech?


Steve
:flag
Reply



All times are GMT -4. The time now is 07:12 PM.

story-0
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-1
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-2
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-3
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-4
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-5
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-6
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-7
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-8
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-9
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE