all muffler and exhaust questions go here!!!!!!
#4037
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Join Date: Feb 2014
Location: Virginia
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Year: 1999
Model: Cherokee
Engine: 4.0
I had the thrush on the jeep for a while. It sounded pretty good accelerating and made a lot of "muscle car like" sounds, but resonation was awful so I replaced it with a magnaflow (think is pretty similar to dynomax) which sounds great. Van has a thrush though and it sounds awesome. I think they only really sound good with V8s.
#4040
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Join Date: May 2013
Location: Asheville, NC
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Year: 1999
Engine: 4.0
Speaking of APN, I went to install mine today and I've got major clearance issues. The intake manifold will fit into the front dowel but the rear is a no go. The number 6 pipe sits too high to allow the manifold to be flush.
I thought they were suppose to work with 99s but I guess I got a dud. Oh well, I'll just install my factory header and call this a learning tool.
Anyone recommend a good performance header with PROVEN fitment for all 99s?
I thought they were suppose to work with 99s but I guess I got a dud. Oh well, I'll just install my factory header and call this a learning tool.
Anyone recommend a good performance header with PROVEN fitment for all 99s?
#4041
Speaking of APN, I went to install mine today and I've got major clearance issues. The intake manifold will fit into the front dowel but the rear is a no go. The number 6 pipe sits too high to allow the manifold to be flush.
I thought they were suppose to work with 99s but I guess I got a dud. Oh well, I'll just install my factory header and call this a learning tool.
Anyone recommend a good performance header with PROVEN fitment for all 99s?
I thought they were suppose to work with 99s but I guess I got a dud. Oh well, I'll just install my factory header and call this a learning tool.
Anyone recommend a good performance header with PROVEN fitment for all 99s?
#4043
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Join Date: May 2013
Location: Asheville, NC
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Year: 1999
Engine: 4.0
The amount I would have to grind is too much to justify. I don't have a powerful drill and I tried to grind some off and it just didn't make any headway. I don't really want to "modify" the header either as I would think any alterations to it without welding could result in unwarranted cracking.
#4044
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Join Date: Nov 2011
Location: SLC, Utah
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Year: 1999
Model: Cherokee
Engine: 4.0L
The amount I would have to grind is too much to justify. I don't have a powerful drill and I tried to grind some off and it just didn't make any headway. I don't really want to "modify" the header either as I would think any alterations to it without welding could result in unwarranted cracking.
#4046
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Year: 1999
Model: Cherokee
Engine: 4.0L
Hey, so I'm new to Jeeps (just bought my cherokee a few weeks ago) and I've been looking for an exhaust setup and had a couple questions. It's my DD so I don't want it to be crazy loud, but I want to know it's there. Would I want to go with a flowmaster 40 or 50? Also, if I want the power gain will I need to go with a high flow cat?
#4047
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Location: Frederick, MD
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Year: 1989
Model: Cherokee
Engine: 4.0
Hey, so I'm new to Jeeps (just bought my cherokee a few weeks ago) and I've been looking for an exhaust setup and had a couple questions. It's my DD so I don't want it to be crazy loud, but I want to know it's there. Would I want to go with a flowmaster 40 or 50? Also, if I want the power gain will I need to go with a high flow cat?
#4048
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Year: 1999
Model: Cherokee
Engine: 4.0L
#4050
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Join Date: Dec 2012
Location: Valles Mines, MO
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Year: 1999
Model: Cherokee
Engine: 4.0
Super 44 & Thunderbolt Cat ordered!
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?