all muffler and exhaust questions go here!!!!!!
#4051
CF Veteran
Join Date: May 2011
Location: va
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Year: 1996
Model: Cherokee
Engine: i-6 4.0
I've been hit-n-miss with the site for the last year. Finally getting around to wrapping things up with our '99 XJ. It's running a stock 4.0.
Based reading through this thread, I just ordered an exhaust system from Performance Curve. Went with the Flowmaster Super 44 and Thunderbolt O2 OBDII 608396. Did I select the right cat?
Also, do these setups come with the hangers already welded to the pipes?
Based reading through this thread, I just ordered an exhaust system from Performance Curve. Went with the Flowmaster Super 44 and Thunderbolt O2 OBDII 608396. Did I select the right cat?
Also, do these setups come with the hangers already welded to the pipes?
#4054
So im looking for a new exhaust for my 99 xj. Im pretty much a noob and im looking at the free flow exhausts. which is the best one you guys recommend while still passing cali emissions?
#4057
Exhaust Wanted
Hey so I'm pretty well knowing when it comes to exhaust questions. So instead of making a new thread for your question post it here and I or someother people will answer it for you...or pm me if u need a question answered right now like an emergency. Other then that I'm mostly on everyday. So post up some questions. From what to look for in a new muffler. Or to troubleshooting questions. Thanks all lets see those posts
#4058
CF Veteran
I put one of these systems on my '96 last yr and luv it. I did go with band clamps instead of the ones with the kit which would work also.
http://www.jegs.com/i/JEGS+Performan...30496/10002/-1
http://www.jegs.com/i/JEGS+Performan...30496/10002/-1
#4059
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Join Date: Jun 2014
Location: Greenville, SC
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Year: 1997
Model: Cherokee
Engine: 4.0, stock with gibson header & custom exhaust turned down before rear axle
I'm going to assume my question should go here, it's somewhat exhaust related, so here goes- went to the exhaust shop yesterday to get the f'n cherry bomb that the PO put on my 97 replaced with something not so drone-y at any given speed. While there, I mentioned that I've got an exhaust leak, they checked it, and the (aftermarket) header is apparently cracked. They said that they could repair it, but that I would have to take it off first & bring it to them. I'm of the opinion that if I take a cracked one off, I'm going to replace it with a new one. So I ordered a Gibson header off of amazon last night, and will be putting that on instead. here's the question- I understand most folks opt to replace the motor mount while doing this, since it will be off anyway, but if my mounts are fine, would it really be to any benefit to replace the mount? also, since they are good, if I opt to replace the driver's side mount, can I avoid replacing the other until there is an actual issue, or is it absolute necessity to replace both?
-All of that being said, I realize that if you replace one wear item and there are a multiples of it, you should replace all of them, but I would probably rather do the M.O.R.E. torsion mounts in the not too distant future, and would hate to put money in mounts that will not be there in a month or two.
USEFUL observations, suggestions etc. are appreciated!
-All of that being said, I realize that if you replace one wear item and there are a multiples of it, you should replace all of them, but I would probably rather do the M.O.R.E. torsion mounts in the not too distant future, and would hate to put money in mounts that will not be there in a month or two.
USEFUL observations, suggestions etc. are appreciated!
#4060
CF Veteran
Join Date: Aug 2011
Location: San Jose
Posts: 1,994
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Year: 89
Model: Cherokee
Engine: 4.0 I6
I'm going to assume my question should go here, it's somewhat exhaust related, so here goes- went to the exhaust shop yesterday to get the f'n cherry bomb that the PO put on my 97 replaced with something not so drone-y at any given speed. While there, I mentioned that I've got an exhaust leak, they checked it, and the (aftermarket) header is apparently cracked. They said that they could repair it, but that I would have to take it off first & bring it to them. I'm of the opinion that if I take a cracked one off, I'm going to replace it with a new one. So I ordered a Gibson header off of amazon last night, and will be putting that on instead. here's the question- I understand most folks opt to replace the motor mount while doing this, since it will be off anyway, but if my mounts are fine, would it really be to any benefit to replace the mount? also, since they are good, if I opt to replace the driver's side mount, can I avoid replacing the other until there is an actual issue, or is it absolute necessity to replace both?
-All of that being said, I realize that if you replace one wear item and there are a multiples of it, you should replace all of them, but I would probably rather do the M.O.R.E. torsion mounts in the not too distant future, and would hate to put money in mounts that will not be there in a month or two.
USEFUL observations, suggestions etc. are appreciated!
-All of that being said, I realize that if you replace one wear item and there are a multiples of it, you should replace all of them, but I would probably rather do the M.O.R.E. torsion mounts in the not too distant future, and would hate to put money in mounts that will not be there in a month or two.
USEFUL observations, suggestions etc. are appreciated!
#4061
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Join Date: Jun 2014
Location: Greenville, SC
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Year: 1997
Model: Cherokee
Engine: 4.0, stock with gibson header & custom exhaust turned down before rear axle
Ok, and my follow up question that ties back to exhaust is- I assume this is to prevent further manifold cracking, correct?
#4063
CF Veteran
Join Date: Aug 2011
Location: San Jose
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Year: 89
Model: Cherokee
Engine: 4.0 I6
Keeps your driveline from moving around, which reduces parasitic loss of torque from driveline components. Also saves your manifold like you mentioned, and like austin said u joints. Couple people have had their radiators smashed from the motor sliding forward.
#4064
Junior Member
Join Date: Jun 2014
Location: Greenville, SC
Posts: 39
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Year: 1997
Model: Cherokee
Engine: 4.0, stock with gibson header & custom exhaust turned down before rear axle
#4065
Member
Join Date: Jan 2012
Location: Topeka, KS
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Year: 1996
Model: Cherokee
Engine: 4.0
Getting ready to order an exhaust flex pipe to install in a new down pipe it will be welded. Which kind? With the 3 or 4 inch pipe extensions or without?