MAC Headers, How good are they????
#1
Launching!
Thread Starter
Join Date: Dec 2001
Location: Maxell AFB, AL
Posts: 252
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I will be ordering A set when I get back from vacation, and wandering how good they are, and how much RWHP I can epect to gain from them with my mods?
<img src="graemlins/gr_guns.gif" border="0" alt="[guns]" /> <img src="graemlins/camaro.gif" border="0" alt="[Chevrolet]" />
<img src="graemlins/gr_guns.gif" border="0" alt="[guns]" /> <img src="graemlins/camaro.gif" border="0" alt="[Chevrolet]" />
#5
I can shift faster than you.
iTrader: (21)
Join Date: Nov 2001
Location: Baton Rouge, LA
Posts: 5,133
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech20year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I was using the MACs w/ off-road a year ago and really liked them. You can't beat them for the money. Here is what I gained w/ the MACs. I also had the flowmaster 3" collector mod done and ported the primaries.
(copy and paste link into address bar to view)
www.geocities.com/jason99ta1/header_dyno.jpg
[ December 29, 2001: Message edited by: Jason99T/A ]</p>
(copy and paste link into address bar to view)
www.geocities.com/jason99ta1/header_dyno.jpg
[ December 29, 2001: Message edited by: Jason99T/A ]</p>
#6
TECH Junkie
Join Date: Nov 2001
Location: Melbourne, FL
Posts: 3,987
Likes: 0
Received 0 Likes
on
0 Posts
![](https://ls1tech.com/forums/images/ranks/ls1tech10year.png)
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I had MAC's on my car for a looong time before I switched to the Dynatech's. On a mild setup, they seem like the hot ticket, especially for the money. My headers fit well, but the y-pipe (off-road) did leave a little to be desired.
I eventually ended up cutting off the MAC ball-flange collector end to convert the collector to a true 3" opening, and just running 3" Moroso spiral-flow mufflers/dumps...
I eventually ended up cutting off the MAC ball-flange collector end to convert the collector to a true 3" opening, and just running 3" Moroso spiral-flow mufflers/dumps...