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

What is the difference in Mac-mids from 93 and 94-95

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Old Feb 24, 2009 | 03:46 PM
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Default What is the difference in Mac-mids from 93 and 94-95

I need to know how the MAC-mids for 93's differ than the ones for 94-95's. I need to know so MAC can make me the right Y-pipe. They said the Y-pipe for 93 headers is completely different then the 94-95's. I dont know what year my headers are so Im stuck. I bought these headers 3 years ago used and I just got around to putting them on. I am not using any emissions so I didnt care about the year because I knew they would still fit but now I am having an UNBELIEVABLY hard time getting a Y-pipe for this thing. Thanks to all who help because this is getting rediculous. And once again if anybody has a Y-pipe for these headers I will pay well.
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Old Feb 24, 2009 | 03:49 PM
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why not just send a pic of the headers you have over to MAC so they can see what they need to give you for a y-pipe? They should know what headers they are looking at.
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Old Feb 24, 2009 | 03:59 PM
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Passenger side



Driver side


On the 3rd pic down on one of the primaries there is a hole that has been welded up. Look closely to see it. I think that is a sign its the 94-95 headers right?
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Old Feb 24, 2009 | 04:02 PM
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I did send the header pictures to MAC and the guy acted like he wasnt to sure about it and he wont guarantee it will be right. Then I would be out $170 and the 4 weeks it takes to make it. I have already had someone else send me the wrong pipe and frankly Im getting pissed at the whole f'ing situation. I am just afraid they send the wrong pipe so I thought I would ask here to make sure. Right now me and Manny from MAC have agreed on a 94-95 Y-pipe.

Last edited by moderate Z28; Feb 24, 2009 at 04:54 PM.
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Old Feb 24, 2009 | 04:53 PM
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yeah, those are the 94-95. 93's don't have the AIR hookup on the passenger side front.
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Old Feb 24, 2009 | 05:03 PM
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Thank you thank you. You have calmed my nerves.
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Old Feb 24, 2009 | 05:09 PM
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Im putting 94-95 headers and y-pipe on. Plug the emissions and there universal 93-97. But i needed a 95 cat to bolt the y-pipe to the rest of the exhaust.
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Old Feb 24, 2009 | 05:40 PM
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Luckily I dont have a cat anymore just a straight pipe where it once was and I will be welding it there.
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Old Feb 24, 2009 | 05:46 PM
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Check your y-pipe, the one i have has a 4-bolt flange to bolt up to the cat. My 93 is a 3" slip fit, so i had to buy it. Only problem i ran into.
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Old Feb 24, 2009 | 05:58 PM
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This car didnt have a cat on it when I bought it. It was welded up where the cat connects which is why I have to weld it back up.
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