YJ 4.0L exhaust pipe size - JeepForum.com

 
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post #1 of 8 Old 03-22-2010, 09:47 PM Thread Starter
skidawgz
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1994 YJ Wrangler 
 
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YJ 4.0L exhaust pipe size

I need to order a new cat and after some searching I figured I'd save time.
Is the piping 2.25" or 2.5"?
4.0L

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post #2 of 8 Old 03-22-2010, 09:58 PM
jgillespie
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IIRC it's 2.5

'91 YJ 4.0 3/4'' Brandon Booms 31/10.50 BFG AT Herc'd CJ dash/tailgate CJ5 seats 4KCs cracked windshield
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post #3 of 8 Old 03-22-2010, 10:12 PM
Tshark299
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it's 2.25", I just replaced everything from the manifold back


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- 4.0L, AX-15, NP231, 4.10s: 3.5" BDS, 31" Muds


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post #4 of 8 Old 03-22-2010, 10:27 PM Thread Starter
skidawgz
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thanks, do we have a tie breaker vote ha ha
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post #5 of 8 Old 03-22-2010, 10:30 PM
stone
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Mine is 2.25
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post #6 of 8 Old 03-22-2010, 10:44 PM
jeepwyj94
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mine is 2.25
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post #7 of 8 Old 03-22-2010, 10:49 PM
Stryker777
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2.25 here also
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post #8 of 8 Old 03-23-2010, 01:34 AM
stumpjumper09
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2.25 on mine

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