NOS GM mufflers......
03-14-2016, 11:45 PM
#52
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Car: 1989 IROC-Z. Original owner
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Re: NOS GM mufflers......
Check out these tail pipes. Pretty darned close to factory
Go to the Xlerator website and check out the mandrel bent X3000 and X3001 tail pipes.
http://showmetheparts.com/apexhaust/
#34754 and #34755 are pretty close too.
See what you guys think. About as close to factory as I've seen.
Go to the Xlerator website and check out the mandrel bent X3000 and X3001 tail pipes.
http://showmetheparts.com/apexhaust/
#34754 and #34755 are pretty close too.
See what you guys think. About as close to factory as I've seen.
03-14-2016, 11:57 PM
#53
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Car: 1988 Trans Am
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Re: NOS GM mufflers......
Check out these tail pipes. Pretty darned close to factory
Go to the Xlerator website and check out the mandrel bent X3000 and X3001 tail pipes.
http://showmetheparts.com/apexhaust/
#34754 and #34755 are pretty close too.
See what you guys think. About as close to factory as I've seen.
Go to the Xlerator website and check out the mandrel bent X3000 and X3001 tail pipes.
http://showmetheparts.com/apexhaust/
#34754 and #34755 are pretty close too.
See what you guys think. About as close to factory as I've seen.
03-15-2016, 09:09 AM
#56
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Re: NOS GM mufflers......
Pretty darned close. I plan on using them on my next exhaust.
03-15-2016, 01:10 PM
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Re: NOS GM mufflers......
I'm on a roll boys.....
This pre-bent I- pipe, part # X6501 is 3" in diameter. Why is that significant? All other replacement I-pipes from all the other manufacturers are 2" or 2.25" or 2.5". Not what you'd want to replace your TPI 2.75" factory I-pipe with.
This pre-bent I- pipe, part # X6501 is 3" in diameter. Why is that significant? All other replacement I-pipes from all the other manufacturers are 2" or 2.25" or 2.5". Not what you'd want to replace your TPI 2.75" factory I-pipe with.
Last edited by chazman; 03-15-2016 at 01:30 PM.
03-16-2016, 08:46 PM
#60
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Re: NOS GM mufflers......
The x3000 and x3001 are listed for v6 cars while the 34754 and 34755 are listed for the v8 cars. Why would that be? They look to be the same diameter pipe right?
If they are then the 3000/3001 look spot on and I would be getting them for my TPI V8...
If they are then the 3000/3001 look spot on and I would be getting them for my TPI V8...
Last edited by Motown; 03-16-2016 at 09:18 PM.
03-16-2016, 09:00 PM
#61
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Car: 1989-92 FORMULA350 305 92 Hawkclone
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Axle/Gears: 3.70 9"ford alum chunk,dana44,9bolt
Re: NOS GM mufflers......
Do they have the 91-2 tail pipes listed as well? (they are different)
03-17-2016, 03:24 PM
#63
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Re: NOS GM mufflers......
I didn't read all two pages, so this may have been covered, but those mufflers are only correct for the 4th gen and maybe the last year or two of the third gen when they started to use clamps. Before that, all mufflers and tail pipes were single unit assemblies I believe.
03-17-2016, 03:31 PM
#64
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Re: NOS GM mufflers......
I didn't read all two pages, so this may have been covered, but those mufflers are only correct for the 4th gen and maybe the last year or two of the third gen when they started to use clamps. Before that, all mufflers and tail pipes were single unit assemblies I believe.
They were a muffler/tail pipe assembly, with the tail pipes welded to the muffler outlets. These are the mufflers, minus the tail pipes.
03-19-2016, 03:05 PM
#67
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Re: NOS GM mufflers......
Will do.
Charlie, any tips to get rid of all of the mouse crap from this? Or just continue to shake it?
Charlie, any tips to get rid of all of the mouse crap from this? Or just continue to shake it?
03-19-2016, 06:51 PM
#69
Senior Member
Re: NOS GM mufflers......
Yes. I mean it aint really a big deal but I turned it over and heard what I thought was a little bit of sand but then mouse crap started to fall out. Maybe just putting it on the car and driving will blow all the "crap" out...lol
03-19-2016, 11:41 PM
#70
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Re: NOS GM mufflers......
Well, you must be the lucky one with mouse turds.
From experience, you'll smell the odiferous aroma of critter pellets burning off for an hour or two, and that will be that.
03-20-2016, 10:56 PM
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Car: 92 & 91 Z28 1LEs, 87 IROC-Z, 90 ZR1
Engine: L98, LT5
Transmission: 700R4, 6-speed
Axle/Gears: 3.45, 3.42, 3.73, 3.27
Re: NOS GM mufflers......
The clamps did exist on the '91, here is a pic of mine:
03-21-2016, 02:42 AM
#73
Re: NOS GM mufflers......
I've just been following other hobbies. When any hobby starts to get old, I set it down and step away for awhile.
The 34754/34755 numbers look to be Walker part numbers. Should be able to get them through most chain auto parts stores.
Summit lists the X3000/X3001 under APH-X3000 & APH-X3001, but doesn't give any specs. However, the Apex Exhaust "Performance" catalog shows the X3000/X3001 and X6501 I-pipe as being 2.5", not 3".
FWIW, a lot of the parts store replacement exhaust parts for thirdgens have gone to using the same muffler and tailpipes for everything from the V6 to the L98, simply so they don't have to make and stock different parts.
If you really want performance sized exhaust, stick to a catback. If you want something very close to OEM, it's hard to beat Walker/Dynomax. While the stock TPI I-pipe IS 2.75", it necks down to 2.5" where it slips inside the muffler. The Walker I-pipe is virtually identical.
Summit lists the X3000/X3001 under APH-X3000 & APH-X3001, but doesn't give any specs. However, the Apex Exhaust "Performance" catalog shows the X3000/X3001 and X6501 I-pipe as being 2.5", not 3".
FWIW, a lot of the parts store replacement exhaust parts for thirdgens have gone to using the same muffler and tailpipes for everything from the V6 to the L98, simply so they don't have to make and stock different parts.
If you really want performance sized exhaust, stick to a catback. If you want something very close to OEM, it's hard to beat Walker/Dynomax. While the stock TPI I-pipe IS 2.75", it necks down to 2.5" where it slips inside the muffler. The Walker I-pipe is virtually identical.
03-21-2016, 09:18 AM
#75
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Car: 1989 IROC-Z. Original owner
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Axle/Gears: BW 3.45
Re: NOS GM mufflers......
I've just been following other hobbies. When any hobby starts to get old, I set it down and step away for awhile.
The 34754/34755 numbers look to be Walker part numbers. Should be able to get them through most chain auto parts stores.
Summit lists the X3000/X3001 under APH-X3000 & APH-X3001, but doesn't give any specs. However, the Apex Exhaust "Performance" catalog shows the X3000/X3001 and X6501 I-pipe as being 2.5", not 3".
FWIW, a lot of the parts store replacement exhaust parts for thirdgens have gone to using the same muffler and tailpipes for everything from the V6 to the L98, simply so they don't have to make and stock different parts.
If you really want performance sized exhaust, stick to a catback. If you want something very close to OEM, it's hard to beat Walker/Dynomax. While the stock TPI I-pipe IS 2.75", it necks down to 2.5" where it slips inside the muffler. The Walker I-pipe is virtually identical.
The 34754/34755 numbers look to be Walker part numbers. Should be able to get them through most chain auto parts stores.
Summit lists the X3000/X3001 under APH-X3000 & APH-X3001, but doesn't give any specs. However, the Apex Exhaust "Performance" catalog shows the X3000/X3001 and X6501 I-pipe as being 2.5", not 3".
FWIW, a lot of the parts store replacement exhaust parts for thirdgens have gone to using the same muffler and tailpipes for everything from the V6 to the L98, simply so they don't have to make and stock different parts.
If you really want performance sized exhaust, stick to a catback. If you want something very close to OEM, it's hard to beat Walker/Dynomax. While the stock TPI I-pipe IS 2.75", it necks down to 2.5" where it slips inside the muffler. The Walker I-pipe is virtually identical.
On the X6501 I-pipe, I called CARid on it's specs and they have it listed as 3". So, who knows.
Last edited by chazman; 03-21-2016 at 12:28 PM.
03-24-2016, 08:02 PM
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Re: NOS GM mufflers......
03-24-2016, 11:46 PM
#78
Re: NOS GM mufflers......
So nevermind what the manufacturer shows? Not at all concerned that the diagram shows three 2 1/2" muffler clamps? Can't imagine how the company that makes the part knows less about it than random vendors.
Won't know for sure until someone orders one, but everything I'm seeing shows that I-pipe as being 2.5".
Won't know for sure until someone orders one, but everything I'm seeing shows that I-pipe as being 2.5".
03-24-2016, 11:59 PM
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Re: NOS GM mufflers......
So nevermind what the manufacturer shows? Not at all concerned that the diagram shows three 2 1/2" muffler clamps? Can't imagine how the company that makes the part knows less about it than random vendors.
Won't know for sure until someone orders one, but everything I'm seeing shows that I-pipe as being 2.5".
Won't know for sure until someone orders one, but everything I'm seeing shows that I-pipe as being 2.5".
But you are right, someone has to order one for us to know 100%.
03-25-2016, 06:04 AM
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03-25-2016, 07:26 PM
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Re: NOS GM mufflers......
First Pic Is Factory,Second Is 34754,Third Is X3001,Forth Is Walker 43244.
03-25-2016, 07:54 PM
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