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stock exhaust size?

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Old 11-07-07, 11:38 AM
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stock exhaust size?
Well I just got back from having my cars emission done and it failed. I am starting to think it is the cat. So does anyone happen to know the stock exhaust size? I have a high flow 2.25" cat I ran on my saturn for like 2 months. So i figure that could be a cheap fixer.
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Old 11-07-07, 12:23 PM
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From what I remember I think it's 2.5", could be wrong though.
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Old 11-07-07, 04:45 PM
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wow....so do people run 3" cat backs on na's as an upgraded exhaust?
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Old 11-07-07, 04:46 PM
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I'd rather just get the racingbeat full exhaust system
(yay no E-checks!)
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Old 11-07-07, 05:07 PM
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The exhaust is about 2 1/8" until the y-pipe.
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Old 11-07-07, 09:14 PM
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Originally Posted by w0ppe
I'd rather just get the racingbeat full exhaust system
(yay no E-checks!)
wanna buy me one while your at it? hahaha

Well I noticed I am also missing my air pump . Do you guys think it is still possible to pass emissions(with out paying the guy off).
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Old 11-07-07, 09:41 PM
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Originally Posted by Twins80s
Well I noticed I am also missing my air pump . Do you guys think it is still possible to pass emissions(with out paying the guy off).
Probably not. Rotaries have particularly nasty emmissions, and the extra air is needed to help the catalyst process. It also keeps the cat from burning up.
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Old 11-07-07, 10:05 PM
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Originally Posted by Twins80s
wow....so do people run 3" cat backs on na's as an upgraded exhaust?
I think I have heard of a couple people doing that. But unless you have a turbo I don't see any benefit to it.
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Old 11-08-07, 01:15 AM
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Originally Posted by Sideways7
Probably not. Rotaries have particularly nasty emmissions, and the extra air is needed to help the catalyst process. It also keeps the cat from burning up.
i feared that. Well good thing I work nights off to the junk yard in the morning
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