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Old Feb 26, 2007 | 08:51 PM
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I'm going to be installing mac mids in a week or so & did a search, however I didn't see anything about needing o2 extensions for the install. Will the front o2's reach or do I need extensions?? If so, what size extensions do I need??? Thanx

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Old Feb 26, 2007 | 08:53 PM
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dont even waste your time. longtubes or no-tubes
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Old Feb 26, 2007 | 09:24 PM
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I just did mine this past weekend. One will reach (barely) but the other is about 1" too short. I used the vette o2's on mine.

They yeild a nice power gain btw. Sound pretty good too. I got a killer deal on mine otherwise I would've gone LT's.
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Old Feb 26, 2007 | 10:11 PM
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MAC's work well, although there are better choices out there now.

You shouldn't need extensions. There is usually enough "stretch" in the stock harness to work. Just be careful on the passengers side. Make sure the wires are zipped tied away from the headers.

Last edited by WILWAXU; Feb 26, 2007 at 11:20 PM.
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Old Feb 26, 2007 | 10:53 PM
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Originally Posted by Assman
I just did mine this past weekend. One will reach (barely) but the other is about 1" too short. I used the vette o2's on mine.

They yeild a nice power gain btw. Sound pretty good too. I got a killer deal on mine otherwise I would've gone LT's.
I got tooo good of a deal to pass up on these Macs also.....from what I've seen they only make about 5whp less up top than LT's & thats the only difference.....hopefully my front o2's reach
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Old Feb 26, 2007 | 10:57 PM
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Originally Posted by WILWAXU
MAC's work well, although there are better choices out there now.

You shouldn't need extensions. There is usually enough "stretch" in the stock harness to work. Just be careful on the passengers side. Make the the wires are zipped tied away from the headers.
I hope I have enough stretch.....should I buy the 12" extensions to be on the safe side of things??? I just want this install to go as smooth as possible....Thanx for the advice bro
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Old Feb 26, 2007 | 11:04 PM
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Originally Posted by miamifan3413
I hope I have enough stretch.....should I buy the 12" extensions to be on the safe side of things??? I just want this install to go as smooth as possible....Thanx for the advice bro
I went and bought a vette O2 like ASSMAN said. I picked up 17 rwhp and 16 rwtq with my Macs. I didn't think that was too shabby for what I paid for them.
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Old Feb 26, 2007 | 11:18 PM
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I think the 02's are hit or miss. I didn't have any problem with mine reaching on my '99 when I had my MAC's.
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Old Feb 26, 2007 | 11:22 PM
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Originally Posted by Bird-Of-Prey
I think the 02's are hit or miss. I didn't have any problem with mine reaching on my '99 when I had my MAC's.
I hope I have the same luck.....Does sound like hit or miss....I hate these situations SWEEEET ride u have there
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Old Feb 27, 2007 | 12:55 AM
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i also didnt have any problems with the o2s reaching when i had my mac-mids.
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Old Mar 1, 2007 | 07:55 PM
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o2's will reach. when you install them, try from the top. Pull the coil packs, valve covers, steering linkage and maybe the starter. They should drop right in.
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Old Mar 2, 2007 | 12:25 AM
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Originally Posted by gillbot
o2's will reach. when you install them, try from the top. Pull the coil packs, valve covers, steering linkage and maybe the starter. They should drop right in.
Damn.....do u really have to pull all that???? Thanx for the warning & tip I think I'm gonna try putting them in from the top by just removing the coil packs, EGR, steering linkage Does anyone know if you gotta cut the tab off the block to get these in???
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Old Mar 2, 2007 | 05:28 AM
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ok the valve covers no, the linkage no, and the starter HELL NOO!!!
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Old Mar 2, 2007 | 05:28 AM
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i have macs and no that crap doesnt need to come off
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Old Mar 2, 2007 | 08:31 AM
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Originally Posted by SStheBest
i have macs and no that crap doesnt need to come off
I've installed about 20 sets of MACs, thay all go in easier from the top. Not to mention you don't need to get the car very high either so working in a driveway is a piece of cake. The only car they didn't go in this way was my wife's vert.
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Old Mar 2, 2007 | 10:52 AM
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Originally Posted by gillbot
I've installed about 20 sets of MACs, thay all go in easier from the top. Not to mention you don't need to get the car very high either so working in a driveway is a piece of cake. The only car they didn't go in this way was my wife's vert.
Thanx, I will be goin in from the top....do you HAVE to take the valve covers off & starter???
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Old Mar 2, 2007 | 11:38 AM
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Originally Posted by Cop Car
dont even waste your time. longtubes or no-tubes

I disagree...I've had Mac's and they made quite respectable power. Numbers in my sig were with the Mac mids and ORY. And, I've read many other instances where folks will agree.

Now I will say, that I am switching to LTs...not due to dissatisfaction with the Macs, just because I have the car apart, had the money for Kooks and thought now would be a good time to do it.

Too each his own...I suppose...
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Old Mar 2, 2007 | 11:39 AM
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Originally Posted by gillbot
I've installed about 20 sets of MACs, thay all go in easier from the top. Not to mention you don't need to get the car very high either so working in a driveway is a piece of cake. The only car they didn't go in this way was my wife's vert.
+1...they are easy to install. My passenger side comes out the top and the drivers drops right out the bottom.

That is one plus to running them...
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Old Mar 2, 2007 | 05:20 PM
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I only had to take off the coil packs, plugs, wires, and the passenger valve cover. It was a pretty easy install, fairly quick too.
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Old Mar 2, 2007 | 11:32 PM
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Originally Posted by Assman
I only had to take off the coil packs, plugs, wires, and the passenger valve cover. It was a pretty easy install, fairly quick too.
Sounds good man....thanx for the input....nice SOP difference???
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