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Old 03-15-2014, 09:28 PM   #1
arick793
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Default Is the exhaust flex pipe really necessary?

I'm fixing up a 2000 SL1. The flex tubing between the manifold down pipe and the cat is completely gone. I'm thinking about replacing it with a straight pipe for a few months. Any particular reason that I should avoid doing this?
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Old 03-15-2014, 09:39 PM   #2
fetchitfido
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Default Re: Is the exhaust flex pipe really necessary?

It'll rattle, bang around and break the exhaust system somewhere along the line...probably in a far more annoying and expensive place than a $30 flex pipe.

I don't remember if it's 2in there: http://shop.advanceautoparts.com/p/r...Term=flex+pipe

or 2.25in: http://shop.advanceautoparts.com/p/r...Term=flex+pipe
...
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Old 03-15-2014, 09:57 PM   #3
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Default Re: Is the exhaust flex pipe really necessary?

Quote:
Originally Posted by fetchitfido View Post
I don't remember if it's 2in there: http://shop.advanceautoparts.com/p/r...Term=flex+pipe
I used the Rol 520010 on my '95 DOHC, which is 2" ID.
I regretted not replacing the whole down-pipe/flex ass'y.
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Old 03-15-2014, 11:12 PM   #4
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Default Re: Is the exhaust flex pipe really necessary?

The flex pipe needs to be in place for engine/transaxle movement, Installing a straight pipe in its place will crack the flange where the pipe bolts to the manifold or the flange at the Converter.
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