all muffler and exhaust questions go here!!!!!!
#4711
My clean '01 has 123k on the clock and is finally due for an exhaust system. Everything up to the cat is fine, so I'm just looking to do a cat back system. So many to choose from. I'm not too worried about cost, but I don't want to spend $600+ on parts if I'm not going to notice the difference when spending $300 on parts. I do a bit of towing, nothing too heavy. I want something that sounds a bit healthier than OEM, but I don't want a major freeway drone fest, ya know?
Suggestions?
Thanks in advance.
Suggestions?
Thanks in advance.
#4712
CF Veteran
I've had this system on for around 4yrs now. I substituted lap joint band clamps(no welding) for the ones with the kit. It's a turbo muffler(#91 IMCO)but not overly loud at all.
http://www.jegs.com/i/JEGS-Performan...30496/10002/-1
http://www.jegs.com/webapp/wcs/store...rsistYmm=false
http://www.jegs.com/i/JEGS-Performan...30496/10002/-1
http://www.jegs.com/webapp/wcs/store...rsistYmm=false
#4713
Thanks. The more I thought about it, the more I wanted a stainless steel system, so I ordered the Banks system for $280 shipped. From reading the reviews on it, compared to the reviews on 4 or 5 different aluminized systems priced at $120-170ish, it sure looked like folks who spent the extra dough on the Banks were very happy with it. Lots of similar positive comments about fitment, quality, and the right amount of sound and performance I was looking for. We'll see after mine arrives later this week.
I have a very short (2 mile) commute to work, so I know it's hell on my exhaust, as I don't get it warmed up enough to dry up all the condensation inside 5 days a week. Stainless will hold up to the acidity left behind better than the cheaper alternatives.
I have a very short (2 mile) commute to work, so I know it's hell on my exhaust, as I don't get it warmed up enough to dry up all the condensation inside 5 days a week. Stainless will hold up to the acidity left behind better than the cheaper alternatives.
#4714
No, I don't lick fish.
My clean '01 has 123k on the clock and is finally due for an exhaust system. Everything up to the cat is fine, so I'm just looking to do a cat back system. So many to choose from. I'm not too worried about cost, but I don't want to spend $600+ on parts if I'm not going to notice the difference when spending $300 on parts. I do a bit of towing, nothing too heavy. I want something that sounds a bit healthier than OEM, but I don't want a major freeway drone fest, ya know?
Suggestions?
Thanks in advance.
Suggestions?
Thanks in advance.
#4715
Newbie
Join Date: Apr 2017
Location: California
Posts: 9
Likes: 0
Received 1 Like
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1 Post
Year: 1999
Model: Cherokee
Engine: 4.0 L
Hi there,
Someone stole the catalytic converter off of my XJ. Luckily it looks like they left the O2 sensor. I wont be able to get a new cat for about a week or two and was wondering how bad of an idea it would be to put put a pipe over this section so that I can lightly drive it.
What issues would this cause? Would there be a significant lack of back-pressure? Would it run too rich?
Thanks in advance.
Missing Cat
Someone stole the catalytic converter off of my XJ. Luckily it looks like they left the O2 sensor. I wont be able to get a new cat for about a week or two and was wondering how bad of an idea it would be to put put a pipe over this section so that I can lightly drive it.
What issues would this cause? Would there be a significant lack of back-pressure? Would it run too rich?
Thanks in advance.
Missing Cat
#4716
CF Veteran
Join Date: Oct 2013
Location: Greenville, SC
Posts: 5,920
Likes: 0
Received 190 Likes
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165 Posts
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Originally Posted by coffeeCola
Hi there,
Someone stole the catalytic converter off of my XJ. Luckily it looks like they left the O2 sensor. I wont be able to get a new cat for about a week or two and was wondering how bad of an idea it would be to put put a pipe over this section so that I can lightly drive it.
What issues would this cause? Would there be a significant lack of back-pressure? Would it run too rich?
Thanks in advance.
Missing Cat
Someone stole the catalytic converter off of my XJ. Luckily it looks like they left the O2 sensor. I wont be able to get a new cat for about a week or two and was wondering how bad of an idea it would be to put put a pipe over this section so that I can lightly drive it.
What issues would this cause? Would there be a significant lack of back-pressure? Would it run too rich?
Thanks in advance.
Missing Cat
#4717
Newbie
Join Date: Apr 2017
Location: California
Posts: 9
Likes: 0
Received 1 Like
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1 Post
Year: 1999
Model: Cherokee
Engine: 4.0 L
Thanks for your reply! Happy to hear that it will be able to get me from A to B while I wait for the part.
Sorry! I didn't give it much thought but I now see how this would be sort of against rule No. 5 of the forum rules
Technically speaking this topic isn't allowed per forum rules
#4719
No, I don't lick fish.
#4720
Anyone have a thrush turbo muffler on there 4.0? Does it sound good? My buddy has one on his 4 banger yj and it sounds pretty darn good IMO.
Last edited by NEcherokee; 05-10-2017 at 11:46 AM.
#4721
No, I don't lick fish.
#4723
No, I don't lick fish.
Combining the exhaust system with a overbored throttle body (about 62mm) will also help. All of these mods though will only net you about 10-15 ft/lbs if that.
#4724
Newbie
Join Date: Mar 2015
Location: north NJ or Easter shore VA
Posts: 18
Likes: 0
Received 1 Like
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1 Post
Year: 95
Model: Cherokee
'95 4.0 exhaust system overhaul..
So here is my posting:
Finally without fail, my Cherokee's factory manifold suffered a complete crack around the base of the collector right before it bolts to the downpipe and it's time to get it replaced as well as all the other modifications in line with it. I have ordered a ceramic header (not Ebay), Free flow 2.5" exhaust, and High flow cat with new O2's but my question is this..
The Downpipe has this type of crimp on 3 sides where it bolts to the manifold flange at the base. I initially thought someone bent it or it was modded this way for clearance. I looked my online parts catalogs and there happens to be 3 types listed available for replacement.
1: stock type with the 3 indentations
2: one completely smooth without that crimp bend
3: does not apply. It's a 2 piece inlet downpipe
Does that obstruction do anything or is it a problem? Please let me know s I can order either and complete it.
Thanks guys..
Finally without fail, my Cherokee's factory manifold suffered a complete crack around the base of the collector right before it bolts to the downpipe and it's time to get it replaced as well as all the other modifications in line with it. I have ordered a ceramic header (not Ebay), Free flow 2.5" exhaust, and High flow cat with new O2's but my question is this..
The Downpipe has this type of crimp on 3 sides where it bolts to the manifold flange at the base. I initially thought someone bent it or it was modded this way for clearance. I looked my online parts catalogs and there happens to be 3 types listed available for replacement.
1: stock type with the 3 indentations
2: one completely smooth without that crimp bend
3: does not apply. It's a 2 piece inlet downpipe
Does that obstruction do anything or is it a problem? Please let me know s I can order either and complete it.
Thanks guys..
#4725
No, I don't lick fish.
So here is my posting:
Finally without fail, my Cherokee's factory manifold suffered a complete crack around the base of the collector right before it bolts to the downpipe and it's time to get it replaced as well as all the other modifications in line with it. I have ordered a ceramic header (not Ebay), Free flow 2.5" exhaust, and High flow cat with new O2's but my question is this..
The Downpipe has this type of crimp on 3 sides where it bolts to the manifold flange at the base. I initially thought someone bent it or it was modded this way for clearance. I looked my online parts catalogs and there happens to be 3 types listed available for replacement.
1: stock type with the 3 indentations
2: one completely smooth without that crimp bend
3: does not apply. It's a 2 piece inlet downpipe
Does that obstruction do anything or is it a problem? Please let me know s I can order either and complete it.
Thanks guys..
Finally without fail, my Cherokee's factory manifold suffered a complete crack around the base of the collector right before it bolts to the downpipe and it's time to get it replaced as well as all the other modifications in line with it. I have ordered a ceramic header (not Ebay), Free flow 2.5" exhaust, and High flow cat with new O2's but my question is this..
The Downpipe has this type of crimp on 3 sides where it bolts to the manifold flange at the base. I initially thought someone bent it or it was modded this way for clearance. I looked my online parts catalogs and there happens to be 3 types listed available for replacement.
1: stock type with the 3 indentations
2: one completely smooth without that crimp bend
3: does not apply. It's a 2 piece inlet downpipe
Does that obstruction do anything or is it a problem? Please let me know s I can order either and complete it.
Thanks guys..
As far as performance goes, I really don't think the dents are going to make a huge difference, TBH. The major "restricting" factor is that the downpipe is 2.25".... so it almost acts as a "choke" between your header collector and 2.5" pipe from the downpipe back.