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Old 02-03-2011, 08:45 PM   #1
richpin06
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Default Exhaust Flex Pipe

Just blew out the exhaust flex pipe on my 98 with northeast emissions and i am finding it quite difficult finding a replacement front pipe without cat.Hey even just a stand alone flex pipe would be ok.Anyone with Cal or northeast emissions bend down this road before.
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Old 02-03-2011, 08:50 PM   #2
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Default Re: Exhaust Flex Pipe

I bought the flexpipe at Autozone and welded it in. I don't think I even dropped the exhaust system to do it.
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Old 02-03-2011, 08:59 PM   #3
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Default Re: Exhaust Flex Pipe

Rockauto shows:

WALKER Part # 52166

That looks like the pipe from the manifold all the way to the cat (without the cat).

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Old 02-03-2011, 08:59 PM   #4
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Default Re: Exhaust Flex Pipe

What's different about the Cali emissions one that a universal flex pipe wouldn't fix? The Walker 52166 says except Cali but it's just a flex pipe with the manifold connection added. Maybe it's easy to modify?

A picture of the old one might help.
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Old 02-03-2011, 09:16 PM   #5
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Default Re: Exhaust Flex Pipe

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Originally Posted by westwind999 View Post
What's different about the Cali emissions one that a universal flex pipe wouldn't fix? The Walker 52166 says except Cali but it's just a flex pipe with the manifold connection added. Maybe it's easy to modify?

A picture of the old one might help.
As you can see in the photo below we have a percat so the headpipe is shorter than Federal vehicles
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Old 02-03-2011, 09:29 PM   #6
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Default Re: Exhaust Flex Pipe

Monroe Muffler used to stock a large selection of those flex connections. You have to weld it in but they had them. Summitt Racing and JC Whitney also have them. Finding a CA headpipe without the CAT will be almost impossible due to the CARB restrictions.

That one looks to be a replacement.....

Last edited by OldNuc; 02-03-2011 at 09:39 PM.
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Old 02-03-2011, 10:42 PM   #7
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Default Re: Exhaust Flex Pipe

If one has been welded in before it can be tough to replace it again. The Walker one doesn't look that different ~$70.
Attached Images
File Type: jpg walker 52166.jpg (15.9 KB, 86 views)
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Old 02-03-2011, 10:53 PM   #8
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Default Re: Exhaust Flex Pipe

I must be going crazy. I'm positive I swapped a pre-cat for a non-precat on a '97 SC2 without messing with the downpipe.
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Old 02-03-2011, 11:57 PM   #9
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Default Re: Exhaust Flex Pipe

Naive question.. Why not just remove the pre-cat and use the regular Walker downpipe? If you have to keep it stock, maybe Low can get a 'Kali" one for you from the JY? Would any smog shop even realize the difference? At the very least it wouldn't be rusted!
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Old 02-04-2011, 01:04 AM   #10
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Default Re: Exhaust Flex Pipe

What is the function of the wire mesh? When I was under the car changing the oil I noticed the mesh was seperated from the pipe where it joins at the front.
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Old 02-04-2011, 09:26 AM   #11
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Default Re: Exhaust Flex Pipe

The exhaust manifold is different on the Cali models. The flex is there because there has to be some give to allow for engine movement and vibration being transferred to the body of the car also.
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Old 02-04-2011, 09:32 AM   #12
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Default Re: Exhaust Flex Pipe

I think my best bet seeing that the flex pipe has been replaced once already is to go with the federal headpipe and do a little yankee engineering which i have been known to do from time to time.Thanks for everyone weighing in on this matter.
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Old 02-04-2011, 10:37 AM   #13
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Default Re: Exhaust Flex Pipe

Quote:
Originally Posted by Spaz View Post
What is the function of the wire mesh? When I was under the car changing the oil I noticed the mesh was seperated from the pipe where it joins at the front.
The mesh protects the stainless steel bellows from impact damage. It is only for mechanical protection.
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Old 02-04-2011, 11:37 AM   #14
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Default Re: Exhaust Flex Pipe

Quote:
Originally Posted by OldNuc View Post
The mesh protects the stainless steel bellows from impact damage. It is only for mechanical protection.
Thanks OldNuc. If I'm understanding this correctly, it's OK to operate the vehicle like that? I'ts not something that needs to be fixed ASAP?
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Old 02-04-2011, 02:22 PM   #15
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Default Re: Exhaust Flex Pipe

Yes, it is a non problem. The mesh usually comes lose in patches on both ends as the welds fail.
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Old 02-04-2011, 03:11 PM   #16
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Default Re: Exhaust Flex Pipe

Thanks for the info OldNuc. I really appreciate it. When I first saw it, I was a little perplexed as to why there wasn't any exhaust noise coming from where it was seperated.
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Old 03-05-2011, 06:11 PM   #17
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Default Re: Exhaust Flex Pipe

is the pre-cat like a little cannister looking thing which bolts to the manifold before the down pipe? if so it looks like my car has this, but i'm from ohio, i thought california cars had this only...
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Old 03-05-2011, 06:15 PM   #18
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Default Re: Exhaust Flex Pipe

If tomorrow's nice I'm removing the A/C compressor yet again on a '95 SL2 with the fed manifold & bolting on the pre-cat manifold from my '96 SC2. Should I take pictures?
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Old 03-05-2011, 08:13 PM   #19
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Default Re: Exhaust Flex Pipe

Quote:
Originally Posted by saturnsctwo View Post
is the pre-cat like a little cannister looking thing which bolts to the manifold before the down pipe? if so it looks like my car has this, but i'm from ohio, i thought california cars had this only...
All of the 2001 models have the pre CAT in the exhaust manifold.
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Old 05-10-2011, 03:45 PM   #20
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Default Re: Exhaust Flex Pipe

Does the Walker 52166 need to be welded to the Cat ?
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