Damaged exhaust after header
06-20-2014, 07:46 PM
#1
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Year: 1996
Model: Cherokee
Engine: 4.0
Damaged exhaust after header
How badly has this been affecting my mpg/performance?
Been like this the last two years that I have owned it.
Looks like the hulk pinched it with his finger and thumb definitely restricting it by half.
*some nice high res pics, makes me wonder what my 4k pics would look like.
Last edited by crabmushrooms5; 06-20-2014 at 07:48 PM.
06-20-2014, 08:09 PM
#2
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Year: 1998
Model: Cherokee
Engine: 4.0
Standard.
Noticed this same thing on mine when I first got it about 5 years Ago. Had the muffler shop fix it with new tube when I had my cat back put on.
One wheeling trip later (or regular driving, I have no idea) and it looked the exact same. I've given up at this point. Im not a doctor but I'm 60% confident that 90% of XJs have this issue.
-Alex
One wheeling trip later (or regular driving, I have no idea) and it looked the exact same. I've given up at this point. Im not a doctor but I'm 60% confident that 90% of XJs have this issue.
-Alex
06-20-2014, 08:15 PM
#5
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Year: 1996
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06-21-2014, 07:31 AM
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
No crush is great and works great.
Be aware though that if you get a downpipe with no crush, and it's the same basic shape as the original, you could whack it with your driveshaft.
I have mine made by the local muffler shop and he tucks them up tighter than the factory routed them.
Be aware though that if you get a downpipe with no crush, and it's the same basic shape as the original, you could whack it with your driveshaft.
I have mine made by the local muffler shop and he tucks them up tighter than the factory routed them.
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06-21-2014, 12:51 PM
#8
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Year: 1991
Model: Cherokee
Engine: I-6 4.0 HO
No crush is great and works great.
Be aware though that if you get a downpipe with no crush, and it's the same basic shape as the original, you could whack it with your driveshaft.
I have mine made by the local muffler shop and he tucks them up tighter than the factory routed them.
Be aware though that if you get a downpipe with no crush, and it's the same basic shape as the original, you could whack it with your driveshaft.
I have mine made by the local muffler shop and he tucks them up tighter than the factory routed them.
06-21-2014, 04:51 PM
#9
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Year: 1996
Model: Cherokee
Engine: 4.0
No crush is great and works great.
Be aware though that if you get a downpipe with no crush, and it's the same basic shape as the original, you could whack it with your driveshaft.
I have mine made by the local muffler shop and he tucks them up tighter than the factory routed them.
Be aware though that if you get a downpipe with no crush, and it's the same basic shape as the original, you could whack it with your driveshaft.
I have mine made by the local muffler shop and he tucks them up tighter than the factory routed them.
06-21-2014, 11:03 PM
#10
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Year: 1990
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06-22-2014, 09:26 AM
#12
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Year: 1990
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Nope. Disguised as such per my buddy in Jeep Engineering. Really there, along with the area above the crossmember and before muffler and cat, to slow down the exhaust and get the cat working sooner.
06-22-2014, 09:39 AM
#13
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Year: 1996
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Plan on replacing headers all the way back, don't want loud maybe just a little rumble though. If I could go completely silent, I would do that
Last edited by crabmushrooms5; 06-22-2014 at 09:44 AM.
06-22-2014, 09:49 AM
#14
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Year: 1990
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So I'm safe without the "crush"? I would like it to run maybe an inch further from the oil pan, looks like I have enough clearance between oil pan and driveshaft to make this happen.
Plan on replacing headers all the way back, don't want loud maybe just a little rumble though. If I could go completely silent, I would do that
Plan on replacing headers all the way back, don't want loud maybe just a little rumble though. If I could go completely silent, I would do that
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