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post #1 of 7 Old 12-04-2010, 03:55 PM Thread Starter
wayfastwhitey44
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1997 TJ Wrangler 
 
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Post 2001 to pre 2001 manifold swap ?

I need to replace my entire exhaust on my 97 4.0 and i want to do the post 2001 to pre 2001 manifold swap. My question is will the 97 computer play nice with a 2001 cat? Thanks

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post #2 of 7 Old 12-04-2010, 04:54 PM
Knuckelhead
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Do you mean that you want to install a post 1999 exhaust manifold on a pre 2000 4.0L TJ engine?...
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post #3 of 7 Old 12-04-2010, 05:02 PM Thread Starter
wayfastwhitey44
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i want to put the entire exhaust from an 2000 4.0 in a 1997 4.0. i want to make sure the post cat o2 will be happy.
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post #4 of 7 Old 12-04-2010, 10:43 PM Thread Starter
wayfastwhitey44
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Ok i think i figured out my set up so i dont have to use a 00-02 cat

Exhaust Manifold:
Used oem units from ebay


Head Pipe:
Walker 52317


Catalytic Converter:
Walker 15841 97-99


Muffler:
Walker 21337


Tail Pipe:
Walker 54227


Now my plan is so cut flange off the head pipe and use an adapter or expand the pipe so it fits with the cat. Any one think this set up will work my only concern is the length of the head pipe and the length of the cat.
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post #5 of 7 Old 12-05-2010, 09:37 AM
LJameson
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Why the whole exhaust when all you need is the manifolds and the collector?

1990 YJ-The wheeler
2015 JK- The DD
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post #6 of 7 Old 12-05-2010, 10:02 AM Thread Starter
wayfastwhitey44
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1997 TJ Wrangler 
 
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Because i just bought the jeep and the whole exhaust is cobed together.
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post #7 of 7 Old 12-05-2010, 01:55 PM
Knuckelhead
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Quote:
Originally Posted by wayfastwhitey44 View Post
Ok i think i figured out my set up so i dont have to use a 00-02 cat

Exhaust Manifold:
Used oem units from ebay


Head Pipe:
Walker 52317


Catalytic Converter:
Walker 15841 97-99


Muffler:
Walker 21337


Tail Pipe:
Walker 54227


Now my plan is so cut flange off the head pipe and use an adapter or expand the pipe so it fits with the cat. Any one think this set up will work my only concern is the length of the head pipe and the length of the cat.
Good find!...
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