New OEM, NOS, GM Muffler

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Old Mar 12, 2016 | 07:04 PM
  #1  
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
New OEM, NOS, GM Muffler

Never used, OEM, GM muffler as used on our cars from the factory. $135 shipped in the US.



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Old Mar 14, 2016 | 09:30 AM
  #2  
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: New OEM, NOS, GM Muffler

TTT
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Old Mar 14, 2016 | 12:01 PM
  #3  
1992 Trans Am's Avatar
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Car: 1992 Pontiac Trans Am Convertible
Engine: 5.0L 305ci TPI
Transmission: 5 Speed Manual, World Class T-5
Axle/Gears: 3.08
Re: New OEM, NOS, GM Muffler

Hello there.
Is this the single inlet, dual outlet muffler for v8 TPI cars?
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Old Mar 14, 2016 | 12:22 PM
  #4  
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: New OEM, NOS, GM Muffler

Originally Posted by 1992 Trans Am
Hello there.
Is this the single inlet, dual outlet muffler for v8 TPI cars?
Yup. It is the exact muffler which came on our TPI Camaro/Firebirds. 2.5" in and dual 2.25" out.

It is identical in dimension and design to the factory ones on my IROCs.
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Old Mar 14, 2016 | 12:36 PM
  #5  
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: New OEM, NOS, GM Muffler

Here's the original thread on them. https://www.thirdgen.org/forums/hist...-mufflers.html
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Old Mar 14, 2016 | 01:31 PM
  #6  
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From: Los Angeles, CA
Car: 1992 Pontiac Trans Am Convertible
Engine: 5.0L 305ci TPI
Transmission: 5 Speed Manual, World Class T-5
Axle/Gears: 3.08
Re: New OEM, NOS, GM Muffler

Private message sent, Chazman!
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Old Mar 23, 2016 | 12:53 PM
  #7  
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: New OEM, NOS, GM Muffler

All mufflers are now sold.

My source may have a couple more nice ones stashed away, so contact me if anyone still needs one.
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Old Sep 19, 2017 | 02:18 PM
  #8  
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Re: New OEM, NOS, GM Muffler

Does source have anymore of these stashed away?


Thanks Brandon
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Old Sep 19, 2017 | 02:33 PM
  #9  
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: New OEM, NOS, GM Muffler

I will check. Another TGO member recently contacted me for one as well.
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Old Sep 19, 2017 | 02:36 PM
  #10  
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Car: 88GTA
Engine: 5.7TPI
Transmission: Auto
Axle/Gears: 3.27
Re: New OEM, NOS, GM Muffler

Originally Posted by chazman
I will check. Another TGO member recently contacted me for one as well.
I told him you might have one to check with you!
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Old Feb 14, 2019 | 09:57 AM
  #11  
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From: Chicagoland
Car: 1989 IROC-Z. Original owner
Engine: LB9. Dual Cats. Big Cam
Transmission: World Class T-5
Axle/Gears: BW 3.45
Re: New OEM, NOS, GM Muffler

Just to update. I've gotten a lot of requests for these mufflers since the original post. I was able to contact the original source who said he still had some left. But he he hasn't responded to my emails for many months.

I figured we'd clean this guy out 3 years ago when I discovered him. The source seems to have become a ghost, now.
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Old Feb 23, 2019 | 06:25 PM
  #12  
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Car: 87 formula 305 bought new
Re: New OEM, NOS, GM Muffler

I know chances are slim to none but if this guy does come up with some more mufflers I'll take one.
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Old Feb 23, 2019 | 09:40 PM
  #13  
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Engine: 355 TBI
Transmission: 700R4
Axle/Gears: 10 Bolt.Posi-3.73s
Re: New OEM, NOS, GM Muffler

I'd buy one also if he comes thru
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