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Generation III Internal Engine 1997-2006 LS1 | LS6
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Stock Cats from a 2000 to a 2001

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Old May 14, 2005 | 07:44 PM
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Default Stock Cats from a 2000 to a 2001
This will work......right?
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Old May 14, 2005 | 07:51 PM
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You just want to take the stock cats from a 2000 and put them onto a 2001?
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Old May 14, 2005 | 07:54 PM
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I don't but I know someone who does.
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Old May 15, 2005 | 12:37 PM
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Bump for an answer!
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Old May 15, 2005 | 12:42 PM
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I don't see why you couldn't. So long as they fit and still function properly you should be fine.
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Old May 15, 2005 | 02:40 PM
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I do not think they fit since if I remember correctly, they changed the manifolds in 01/02 so the location and fit will be different.
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Old May 15, 2005 | 02:42 PM
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00-02 cats are the same. Manifolds were changed in 00.
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Old May 15, 2005 | 02:45 PM
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Are you sure?
I thought that happened mid 2000 onward along with LS6 pump and LS6 intake.
An easy way is the lift the car and compare.
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Old May 15, 2005 | 03:09 PM
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Originally Posted by PREDATOR-Z
Are you sure?
I thought that happened mid 2000 onward along with LS6 pump and LS6 intake.
An easy way is the lift the car and compare.
00 manifolds are cast iron just like the 01-02s. Only difference is they have the EGR boss drilled and tapped on the pass side. 01-02s don't. And no mid year 00 got an LS6 intake. Don't know about the oil pump.
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Old May 15, 2005 | 03:27 PM
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Originally Posted by 2xLS1
00 manifolds are cast iron just like the 01-02s. Only difference is they have the EGR boss drilled and tapped on the pass side. 01-02s don't. And no mid year 00 got an LS6 intake. Don't know about the oil pump.


also some late MY00's got the 241 heads, and i believe some have comfirmed the ls6 pump. they definately did not get the intake however.
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Old May 15, 2005 | 04:54 PM
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So will the cats off a 2000 fit a 01-02 setup?
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Old May 15, 2005 | 05:59 PM
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That's the def o right.
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Old May 16, 2005 | 04:53 PM
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Thanks again Miller!
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