all muffler and exhaust questions go here!!!!!!
02-21-2013, 06:00 PM
#2746
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Location: Warren, Pa
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Year: 97
Model: Cherokee
Engine: 4.0L
I actually just got mine in the mail a couple days ago. The tail pipe looks great! I haven't had time to put it on, but I'm confident that it will fit great as well.
02-22-2013, 10:55 AM
#2747
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Location: Battle Creek, Michigan
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Year: 1992
Model: Cherokee
Engine: 4.0 HO
03-05-2013, 06:09 PM
#2748
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Location: Joliet, Il
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Year: 1996
Model: Cherokee
Engine: HO4.0 I6
I replaced my cat and muffler (dealership cat, flowmaster super 40 series) and now my rpms are way higher at every speed except for idle. And I did not notice any significant changes in power along with the rpm increase. Is this normal? When I shift into 4th gear at 45mph it is at 1500 rpms where it used to be 1200 at 45mph. Is there something I'm missing?
03-05-2013, 06:36 PM
#2749
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Location: Spokane WA
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Year: 1996
Model: Cherokee (XJ)
Engine: ERH 4.0L Power Tech I-6 (HO)
I replaced my cat and muffler (dealership cat, flowmaster super 40 series) and now my rpms are way higher at every speed except for idle. And I did not notice any significant changes in power along with the rpm increase. Is this normal? When I shift into 4th gear at 45mph it is at 1500 rpms where it used to be 1200 at 45mph. Is there something I'm missing?
...of course, I could be full of it. I've been researching why my fuel consumption is crap since my own cat' replace of a couple weeks back, and I've read the above (without yet confirming it, or resetting my own ECU). Still: worth a shot.
03-05-2013, 07:33 PM
#2750
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Year: 2001
Model: Cherokee
Engine: 4.0l I6
Did you disconnect the battery during the cat' install? - Supposedly, you should do this so the ECU is reset, which is desireable with your new cat'. The reset causes the ECU to "learn" the engines correct [mixture?] settings again. During this "reset period", you may have a few (2-3) rough starts (just ignore the symptoms: they will get better).
...of course, I could be full of it. I've been researching why my fuel consumption is crap since my own cat' replace of a couple weeks back, and I've read the above (without yet confirming it, or resetting my own ECU). Still: worth a shot.
...of course, I could be full of it. I've been researching why my fuel consumption is crap since my own cat' replace of a couple weeks back, and I've read the above (without yet confirming it, or resetting my own ECU). Still: worth a shot.
03-05-2013, 08:05 PM
#2753
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Location: Houston Texas
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Year: 1996
Model: Cherokee
Engine: I6
Are magna flow cats, top choice for the 4.0? What is the loudest muffler yall are installing, Flowmaster, Magna flow, Spin tech?
03-05-2013, 08:09 PM
#2754
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Originally Posted by theyammieguy
Are magna flow cats, top choice for the 4.0? What is the loudest muffler yall are installing, Flowmaster, Magna flow, Spin tech?
03-05-2013, 08:40 PM
#2759
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Location: Spokane WA
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Year: 1996
Model: Cherokee (XJ)
Engine: ERH 4.0L Power Tech I-6 (HO)
...I get antsy around digital circuits though ...just don't wanna screw things up.
03-05-2013, 09:06 PM
#2760
Instead of waiting just turn on your headlights then and lay on the horn to suck up the last bits of juice left