Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

MAC header question...

Thread Tools
 
Search this Thread
 
Old Apr 1, 2003 | 11:47 AM
  #1  
MCKNGBRD's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Jan 2002
Posts: 100
Likes: 0
From: Thomasville, NC
Default MAC header question...

What are the differences between their midlengths for a 99 and an 01? I've got an 01 T/A and have an opp for a set of 99 headers...what would I need to do to fit them up?

tia-
Byrdman
Reply
Old Apr 1, 2003 | 11:58 AM
  #2  
minivette's Avatar
TECH Fanatic
 
Joined: Feb 2002
Posts: 1,640
Likes: 0
From: Austin, Tx.
Default Re: MAC header question...

You would need the A.I.R tubes off of a 98-99 (or bend yours) and a block off plate for the EGR flange on the headers.
Reply
Old Apr 1, 2003 | 08:43 PM
  #3  
BeeMo's Avatar
Teching In
 
Joined: Feb 2003
Posts: 24
Likes: 0
From: Murrieta, CA
Default Re: MAC header question...

I'm sure the reason you are not familiar with the EGR on your '01 car, is because you don't have it. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" /> Therefore, you would need an EGR block off plate (which you can find from any of the reputable sponsors to the right). The block off plate will just close off that part of the header. <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" />
Reply
Old Apr 2, 2003 | 12:05 AM
  #4  
MCKNGBRD's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Jan 2002
Posts: 100
Likes: 0
From: Thomasville, NC
Default Re: MAC header question...

</font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by minivette:
<strong> You would need the A.I.R tubes off of a 98-99 (or bend yours) and a block off plate for the EGR flange on the headers. </strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">???

OK...assume that I don't have my car to go look at (I don't...its in NC, waiting out the winter!) and I'm not totally familiar with the EGR system on the 01s...

Thanks for the help...but I'd love to see a pic of the 2 different systems (and the MAC site isn't much help at all...)...that would fix my problem!

Byrdman
Reply
Old Apr 2, 2003 | 08:53 AM
  #5  
MCKNGBRD's Avatar
Thread Starter
On The Tree
iTrader: (2)
 
Joined: Jan 2002
Posts: 100
Likes: 0
From: Thomasville, NC
Default Re: MAC header question...

So the EGR block off plate is all I need? I won't need to cut and weld any tubes or anything...its just cover that EGR tube?

This is looking better and better...

thx-
Byrdman
Reply
Old Apr 2, 2003 | 09:57 AM
  #6  
J'sRamAir's Avatar
TECH Apprentice
 
Joined: Nov 2001
Posts: 350
Likes: 0
From: Lexington, SC
Default Re: MAC header question...

Well you still have to deal with the AIR tubes like minivette suggested. Most people just buy a set off of an '98-'99 since they would be dirt cheap. Or you can just get rid of the AIR syster all together.
Reply
Old Apr 2, 2003 | 08:26 PM
  #7  
gillbot's Avatar
11 Second Club
iTrader: (27)
 
Joined: May 2002
Posts: 2,397
Likes: 0
From: East Palestine, OH - USA
Default Re: MAC header question...

I just blocked them all off on mine and ditched the air pump. I'll be running an ORY so there is no need for the air pump.
Reply




All times are GMT -5. The time now is 07:52 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE