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Unread 10-16-2011, 01:59 PM   #1
Esco
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1993 YJ Wrangler 
 
Join Date: Oct 2010
Location: Williamsburg, VA
Posts: 54
Intake manifold and Exhaust manifold/headers

I have a 93, 4.0L, manual wrangler my exhaust manifold is leaking and I plan on replacing it. Since I have to take off the intake manifold to do this I have afew questions.

1. Is there a after market Intake manifold worth putting on?

2. If there isnt is it worth taking it to a machine shop to have it opened alitted and smoothend?

3. Is it worth getting a good set of headers or just stick with oem style?

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Unread 10-16-2011, 02:18 PM   #2
dillonjm
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2003 TJ Wrangler 
 
Join Date: Jun 2003
Location: Warrensburg, MO
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1. No
2. No
3. Stay stock, technically its a header anyway. Many on here have used one like this with good results (including myself):
http://www.ebay.com/itm/Jeep-Wrangler-Grand-Cherokee-4-0L-Stainless-Steel-Exhaust-Manifold-Gasket-Kit-/130574047195?pt=Motors_Car_Truck_Parts_Accessories &fits=Make%3AJeep&vxp=mtr&hash=item1e66d1d7db



I ended up using the included gasket, but hindsight being what it is, I'd recommend getting a felpro gasket instead of the included one. I haven't had any issues yet with the gasket included, but the felpro is much better quality.
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Unread 10-16-2011, 02:23 PM   #3
jsawduste
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2006 YJ Wrangler 
 
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[quote=Esco;12332171]I have a 93, 4.0L, manual wrangler my exhaust manifold is leaking and I plan on replacing it. Since I have to take off the intake manifold to do this I have afew questions.

1. Is there a after market Intake manifold worth putting on? No but the 2000 and up factory 4.0 manifold is a worthwhile upgrade. A search will bring up plenty of information.

2. If there isnt is it worth taking it to a machine shop to have it opened alitted and smoothend? ~eh........no

3. Is it worth getting a good set of headers or just stick with oem style? Yes, I have had good luck with Edlebrock headers. Stay away from the el cheapo eBay specials. Tend to crack./[quote]
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Unread 10-16-2011, 02:25 PM   #4
tommbstone
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1989 YJ Wrangler 
 
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I have a pace header. No problems
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Unread 10-16-2011, 02:25 PM   #5
MaddBones702
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1989 YJ Wrangler 
 
Join Date: Jun 2011
Location: Henderson, NV
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Yeah get the feltpro. I had an major exhaust manifold leak after get a rebuilt engine installed. The mechanic said it could be his install that my exhaust manifold was warped. Well I replaced the gaskets (with feltpro) last week and the leak is gone. Just make sure you torque it properly!
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Unread 10-17-2011, 08:20 AM   #6
Esco
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1993 YJ Wrangler 
 
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Location: Williamsburg, VA
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Thx I'll replace both exhaust and intake gaskets with Felpro
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