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How hard is it to fab a 4th gen exhaust on our 3rd gens?

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Old Jul 19, 2001 | 02:06 AM
  #1  
Chuck!'s Avatar
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From: Dayton, O.
Car: 91 Camaro Z28
Engine: LS7
Transmission: M12/T56
Axle/Gears: 3.79
How hard is it to fab a 4th gen exhaust on our 3rd gens?

I found and SLP 2OTL exhaust for a good price, but its off a 4th gen. Would it be hard to fab the intermediate pipe up? Anyone do this before?

Thanks!

------------------
Chuck Kulchar
1991 RS
Open Element w/K&N
3.42 posi disc
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Old Jul 19, 2001 | 03:42 AM
  #2  
IROCZTWENTYGR8's Avatar
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From: In a mint Third Gen!
Car: Red 87 IROC-Z28 T-Top
Engine: 5.7 Tuned Port Injection
Transmission: 700R4 Auto
Axle/Gears: BW 9-Bolt 3.27
I don't know, but I'm sure that I've heard some1 on the board did it.

------------------
89 RS

STILL Looking For:
87 IROC-Z28 350 TPI
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Old Jul 19, 2001 | 04:01 AM
  #3  
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should be easy. the only diff are some hangers and where the cat is. I have the partnumbers for a 3rdgen 3" pipe. You could get the pipe that goes from the cat to the axle. There is another pipe that goes over the axle to the muffler.

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-Tas
'89 Formula WS-6

305, TBI, auto, 14x3 chrome flat based open element with K&N, Milodon 160* thermo, functional Formula hood, cross-flow Flowmaster, '99z28 rear pipes and tips....

To be installed eventually far far far into the future: Yours if the price is right and I don't have to ship :
Hooker 1-5/8" 50 state legal headers, Dynomax 3" I pipe (PN 44063 and 43248), Catco 3" cat, and injector spacer.

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Old Jul 19, 2001 | 11:31 AM
  #4  
Chuck!'s Avatar
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From: Dayton, O.
Car: 91 Camaro Z28
Engine: LS7
Transmission: M12/T56
Axle/Gears: 3.79
No ****, so the I pipes are the same length? Couldnt I just saw the hanger off then weld it back on in the right place?

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Chuck Kulchar
1991 RS
Open Element w/K&N
3.42 posi disc
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Old Jul 19, 2001 | 12:48 PM
  #5  
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no. the 4thgen pipe will be too short on a 3rdgen.
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Old Jul 19, 2001 | 01:46 PM
  #6  
Chuck!'s Avatar
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From: Dayton, O.
Car: 91 Camaro Z28
Engine: LS7
Transmission: M12/T56
Axle/Gears: 3.79
Ok then, its a negatory. I dont want to pay the full price for only the rear section.

Thanks!

------------------
Chuck Kulchar
1991 RS
Open Element w/K&N
3.42 posi disc
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Old Jul 19, 2001 | 09:08 PM
  #7  
ImportsRsloths's Avatar
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From: Amelia, OH, USA
Rare Rock Z got a borla exhaust off a 98 Z28 and it "bolted right on" his 90 Iroc!
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Old Jul 19, 2001 | 09:20 PM
  #8  
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I used a 4th gen intermediate pipe, but also switched to a dual cat y-pipe at the same time. I had to lengthen the I-pipe 4". No big deal. Works great. All welded up. No leaks.

Best exhaust I ever had on this car


------------------
Mike L.
It ain't pretty.......

1987 IROC Z TPI 350 A4 3.27 Borg-Warner.

Mods: 2300-2500 Stall Converter, Shift Kit(GM parts), TPI Specialties Stage 3 PROM, Modified Airbox w/ K&N's, homemade cold air, Relocated MAT sensor, Gutted MAF, 160* thermostat, Accel 8mm Wires, bypassed TB coolant, Flowmaster 3 chamber single 3" in/out muffler, 3" MAC mandrel intermediate, custom dual !cat Y-pipe. airfoil, ported plenum. !smog

http://www.MichaelLasiuta.home.att.net

**BOYCOTT LAPEER DRAGWAY**

[This message has been edited by IROC5.7TPI (edited July 19, 2001).]
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