LT1-LT4 Modifications 1993-97 Gen II Small Block V8

MAC Mid Tube Headers

Thread Tools
 
Search this Thread
 
Old May 19, 2008 | 06:56 PM
  #1  
glenb1991's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2008
Posts: 126
Likes: 0
Default MAC Mid Tube Headers

Just lookin for some gains i might be able to expect from these. found a good deal and debating on getting them. mods are in the sig. thanks alot.
$Glen$
Reply
Old May 19, 2008 | 07:07 PM
  #2  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

I have a set of the Mac on mine and you can expect a 25-30 hp increase..they really open up your low-mid range power..top end opened up pretty good to.
Reply
Old May 19, 2008 | 07:29 PM
  #3  
Toronto_LT1's Avatar
TECH Fanatic
iTrader: (-1)
 
Joined: Aug 2007
Posts: 1,069
Likes: 0
Default

^^^wow! that's a lot of gain for a mid tube headers,man.did you get a tune after installation?

where did you get your mac??
Reply
Old May 19, 2008 | 07:48 PM
  #4  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

Originally Posted by Toronto_LT1
^^^wow! that's a lot of gain for a mid tube headers,man.did you get a tune after installation?

where did you get your mac??
Brian at pcmforless tuned my car.. do you think this is high?
I got them direct from Mac.
Reply
Old May 19, 2008 | 08:15 PM
  #5  
glenb1991's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2008
Posts: 126
Likes: 0
Default

nice nice. i already have a custom exhaust. but when i put em on imma take it to the exhaust shop and have them weld everything up and put cut outs about a foot or two after the headers. and ill rerun my hypertech when i get em too until i can save up for a dyno tune.
Reply
Old May 19, 2008 | 08:24 PM
  #6  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

Originally Posted by glenb1991
nice nice. i already have a custom exhaust. but when i put em on imma take it to the exhaust shop and have them weld everything up and put cut outs about a foot or two after the headers. and ill rerun my hypertech when i get em too until i can save up for a dyno tune.
Yeah they really open your car up man that's for sure. One of the sales reps sent me a dyno slip from a 93 LT1 with the numbers after they put them on..made like 28 more hp if I remember correctly. I will try and find it and link it to you.
Reply
Old May 19, 2008 | 08:49 PM
  #7  
glenb1991's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2008
Posts: 126
Likes: 0
Default

thanks man. i appreciate it. im tryin to add some more time to my runs when i go to gainesville june 4th so imma go ahead and order em when i get the money, thanks again.
$Glen$
Reply
Old May 19, 2008 | 10:13 PM
  #8  
lt1noob's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Mar 2008
Posts: 1,443
Likes: 1
From: Wisconsin
Default

yea elliot was talking about his mac mids one day and really changed the way i thought of mids. i know shortys arent good for **** and everyone says longtubes are the way to go, but apparently mids can also be the way to go
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

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

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old May 20, 2008 | 12:27 AM
  #9  
porksoda's Avatar
TECH Addict
iTrader: (39)
 
Joined: May 2005
Posts: 2,458
Likes: 2
From: Clovis, NM
Default

I have Mac's and love them! Best clearance to spark plugs that i have seen. I can change mine in like 15-20 minutes. No scraping collectors on everything.
Reply
Old May 20, 2008 | 02:16 AM
  #10  
NorthernZ's Avatar
On The Tree
 
Joined: Jan 2008
Posts: 108
Likes: 0
From: prince rupert
Default

What is the ground clearance like on a mid length headers? Where is the collector in comparison to the shorties. Porksoda didn't mention if it was the mid length that had the good plug clearance.
I have a set of edelbrock headers on it and I think they are shorties, but I'm not to sure. I bet I instaled them about 8 years ago and I don't think that edelbrock has ever offered mid or long tube headers for the lt1.
I'm thinking I'm gonna change the headers when I do the heads next year, is the beneifit that great with going from shorties to mids?
Reply
Old May 20, 2008 | 08:55 AM
  #11  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

Originally Posted by porksoda
I have Mac's and love them! Best clearance to spark plugs that i have seen. I can change mine in like 15-20 minutes. No scraping collectors on everything.
See!! Another Satisfied Mac owner..
Reply
Old May 20, 2008 | 11:56 AM
  #12  
lt1noob's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Mar 2008
Posts: 1,443
Likes: 1
From: Wisconsin
Default

so for mac mids, could i do lets say.... mids, ory, magnaflow cat and would this probably bolt up to my flowmaster catback no problem? i wouldnt need any extra piping or any of that **** due to them being shorter than longtubes would i?

i guess what im asking is would the ory be more than long enough and i just cut it to the length i need to make it fit or...?
Reply
Old May 20, 2008 | 12:34 PM
  #13  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

Originally Posted by lt1noob
so for mac mids, could i do lets say.... mids, ory, magnaflow cat and would this probably bolt up to my flowmaster catback no problem? i wouldnt need any extra piping or any of that **** due to them being shorter than longtubes would i?

i guess what im asking is would the ory be more than long enough and i just cut it to the length i need to make it fit or...?
The mac mids come with a y-pipe and what I did was run the y-pipe into my magnaflow 3'' cat. Does your cat have a 3'' collector?
Reply
Old May 20, 2008 | 12:51 PM
  #14  
TRIPOWER1's Avatar
On The Tree
 
Joined: Sep 2005
Posts: 107
Likes: 0
From: lombard, IL
Default

I have mac mids and y pipe into a magnaflow cat into a elec cut-out into a flowmaster system, no problem here.
Reply
Old May 20, 2008 | 03:05 PM
  #15  
lt1noob's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Mar 2008
Posts: 1,443
Likes: 1
From: Wisconsin
Default

i beleive so, not sure ill have to look. elliot where did you pic yours up? ill probably buy the exact setup you have, except ill keep my flowmaster instead of magnaflow, and throw a cutout in there.
Reply
Old May 20, 2008 | 03:53 PM
  #16  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

Originally Posted by lt1noob
i beleive so, not sure ill have to look. elliot where did you pic yours up? ill probably buy the exact setup you have, except ill keep my flowmaster instead of magnaflow, and throw a cutout in there.
Hey what up man...got your PM. I got mine direct from Mac. The link you sent me look like coated when I actually have the stainless ones...which are better quality.
http://www.macperformance.com/
Reply
Old May 20, 2008 | 04:33 PM
  #17  
Elliott's94Z's Avatar
Banned
iTrader: (12)
 
Joined: Mar 2008
Posts: 4,370
Likes: 1
From: Oregon Grown
Default

LT1NOOB..here is your part #TF9495 through Mac.. $589.50. They shipped mine out for free so see if you can swing the same deal. Good luck man!
Reply
Old May 20, 2008 | 09:01 PM
  #18  
glenb1991's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Mar 2008
Posts: 126
Likes: 0
Default

dang. lookin at that price. i got a steal. nice. cant wait to put em on and toss some cut outs after em. then run it down to gainesville one last time before i work my butt off for the rest of the summer.
$Glen$
Reply
Old May 20, 2008 | 09:11 PM
  #19  
lt1noob's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Mar 2008
Posts: 1,443
Likes: 1
From: Wisconsin
Default

very nice, thanks man.
Reply
Old May 20, 2008 | 09:14 PM
  #20  
lt1noob's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: Mar 2008
Posts: 1,443
Likes: 1
From: Wisconsin
Default

these are definately what ill be going with, for the price you absolutely cant go wrong.
Reply



All times are GMT -5. The time now is 02:43 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