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Longtubes- 4th Gen ORY on 3rd Gen?

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Old Dec 13, 2023 | 01:10 PM
  #1  
HawkZ28's Avatar
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From: Lincoln, NE
Car: 86 Z28
Engine: Built 312
Transmission: T5
Axle/Gears: 10 bolt 3.42
Longtubes- 4th Gen ORY on 3rd Gen?

Has anyone tried using an LT1 car Y pipe or ORY kit that has the 3 pieces- Y pipe, drivers and passenger 'leg', and utilize it as a base to connect longtubes to a 3" catback? If so, which kit did you use and how did it tuck to the body, and how close to 'stock' did it connect to the catback?
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Old Dec 15, 2023 | 12:51 AM
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QwkTrip's Avatar
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: Longtubes- 4th Gen ORY on 3rd Gen?

3rd gen long tube headers run down the trans tunnel. 4th gen do not.

Mufflex sells a 3rd gen Y-pipe with what I assume is a Flowmaster merge. Good stuff.
https://mufflex-performance.com/3rd-...ngs-82-92.html
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Old Dec 15, 2023 | 12:56 AM
  #3  
QwkTrip's Avatar
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25 Year Member
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Joined: Mar 2001
Posts: 10,414
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Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: Longtubes- 4th Gen ORY on 3rd Gen?

This page has pictures of both 3rd gen and 4th gen long tube header Y-pipe so you can see the difference.

https://mufflex-performance.com/26-3...ody-cars-82-02
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Old Dec 16, 2023 | 11:41 AM
  #4  
HawkZ28's Avatar
Thread Starter
Senior Member
15 Year Member
iTrader: (2)
 
Joined: Mar 2008
Posts: 557
Likes: 15
From: Lincoln, NE
Car: 86 Z28
Engine: Built 312
Transmission: T5
Axle/Gears: 10 bolt 3.42
Re: Longtubes- 4th Gen ORY on 3rd Gen?

Appreciate it! Was hoping I'd discovered an easy peasey LT1 cheat code so I could save some time in fabrication.

Too bad mine are hedman.
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