CF Veteran
If it's a trail rig, pull that little guy and put in a perforated core test pipe with resonator. You won't lose tq, you are keeping the exhaust velocity the same as long as you go with the right size pipe. You actually might see improvement everywhere since all they really do is provide backpressure which is not any helpful
CF Veteran
Quote:
#5
https://www.cherokeeforum.com/f67/an...rum-com-rules/
Being that this is concerning a trail rig, it sees no road time and therefore is a legal mod.Originally Posted by dukie564
Cough...Cough....#5
https://www.cherokeeforum.com/f67/an...rum-com-rules/
I talked to a moderator about this thread specifically. If its trail only, I guess its acceptable.

CF Veteran
Who cares if it's an illegal mod? It's against forum rules, sure, but it's not illegal (law, not forum) to talk about doing it, the benefits, etc. Not to mention there are a number of illegal modifications that are around on here, that lots of guys do, that aren't against forum rules.
CF Veteran
Quote:
Its also sadly one of those hot topics that rarely go well.Originally Posted by Hoooper
Who cares if it's an illegal mod? It's against forum rules, sure, but it's not illegal (law, not forum) to talk about doing it, the benefits, etc. Not to mention there are a number of illegal modifications that are around on here, that lots of guys do, that aren't against forum rules.
CF Veteran
Quote:
Its also sadly one of those hot topics that rarely go well.
They would likely go better if there was a legitimate conversation about it instead of BS about forum rules mostlyOriginally Posted by Gee oh Dee
Its also sadly one of those hot topics that rarely go well.
Conversations about which lift kit to get go pretty south but that's not against the rules...
CF Veteran
Quote:
Every time I go mudding steam comes up from the right side of the jeep because of the cat. I have nearly started a few grass fires with my cat too, they get unbelievably hot. Parked over some tall grass, smelled smoke, saw the grass starting to burn.Originally Posted by Gee oh Dee
And to be honest, cats DO get really hot. Hot enough to potentially cause a problem. However I have yet to see anyone on here burn up cuz their cat bumped a leaf or some grass.
CF Veteran
Quote:
Every time I go mudding steam comes up from the right side of the jeep because of the cat. I have nearly started a few grass fires with my cat too, they get unbelievably hot. Parked over some tall grass, smelled smoke, saw the grass starting to burn.
Yep, heat like this actually causes quite a few fires in CA with the tall dry grass. Although we also get them from lawn lowers sparking on rocks so it's hard to actually blame a cat since it's so dry just about anything can set it on fireOriginally Posted by mrfajita
Every time I go mudding steam comes up from the right side of the jeep because of the cat. I have nearly started a few grass fires with my cat too, they get unbelievably hot. Parked over some tall grass, smelled smoke, saw the grass starting to burn.
CF Veteran
Quote:
Originally Posted by mrfajita
Every time I go mudding steam comes up from the right side of the jeep because of the cat. I have nearly started a few grass fires with my cat too, they get unbelievably hot. Parked over some tall grass, smelled smoke, saw the grass starting to burn.
Quote:
You guys try heat shields?Originally Posted by Hoooper
Yep, heat like this actually causes quite a few fires in CA with the tall dry grass. Although we also get them from lawn lowers sparking on rocks so it's hard to actually blame a cat since it's so dry just about anything can set it on fire
Quote:
X2 Thats why they have them but they usually fall off over time. Which is from neglect of taking notice of that rattle that starts under there.Originally Posted by Gee oh Dee
You guys try heat shields?
And to the OP I to have a Renix. My cat fell off one day and I welded a straight pipe on as a temporary fix till I could get my hands on a new one.
Drove it for a week and I did not notice any HP gains in city or highway. But I noticed a major drop in MPG.
Welded new cat on and my MPG got better again from the back pressure it makes. So I do not see anything wrong or any set backs it will make not having it there on a 4.0L thats not meant for a 1/4 drag strip.
And as for forum rules.. Any talk of removal just because you dont like it there is forbidden. And for a Trail only rig I gotta talk to the Admins about that since thats a gray area..
If it falls off and your looking for a better cat then it's fine.
Seems like every 3 weeks we gotta go through this because nobody reads the rules.
Honorary Moderator
Federal Law.
Quote:
Rules for Replacing Converters
In 1986, the U.S. Environmental Protection Agency issued new guidelines for the construction, efficiency and installation of aftermarket catalytic converters. All CleanAir converters listed in this catalog have been designed, tested and manufactured to meet this policy.
In addition, CleanAir converter listed in this catalog is appropriate for use under the current requirements of the California Air Resources Board (C.A.R.B.).
E.P.A. guidelines state that replacement converters may be installed only in the following situations:
1. The vehicle is missing a converter
2. A state or local inspection program has determined that the existing converter needs replacement
3. Vehicles manufactured prior to 1996 must have more than 50,000 miles, and a legitimate need for replacement must be established and documented
4. In cases of OBD Il-equipped vehicles (1996 and later), the O.E. manufacturer's 8-year/80,000-mile warranty must have expired and a legitimate need for replacement must be established and documented.
Please note that Federal law prohibits removal or replacement of a properly functioning O.E. converter.
When replacement of the converter is appropriate (as outlined above), the E.P.A. further requires that:
1. It be installed in the same location as the original
2. It be the same type as the original (i.e., two-way, three-way, three-way plus air/three-way plus oxidation)
3. It be the proper model for the vehicle application as determined and specified by the manufacturer
4. It be properly connected to any existing air injection components on the vehicle
5. It be installed with any other required converter for a particular application
6. It be accompanied by a warranty information card to be completed by the installer.
Rules for Replacing Converters
In 1986, the U.S. Environmental Protection Agency issued new guidelines for the construction, efficiency and installation of aftermarket catalytic converters. All CleanAir converters listed in this catalog have been designed, tested and manufactured to meet this policy.
In addition, CleanAir converter listed in this catalog is appropriate for use under the current requirements of the California Air Resources Board (C.A.R.B.).
E.P.A. guidelines state that replacement converters may be installed only in the following situations:
1. The vehicle is missing a converter
2. A state or local inspection program has determined that the existing converter needs replacement
3. Vehicles manufactured prior to 1996 must have more than 50,000 miles, and a legitimate need for replacement must be established and documented
4. In cases of OBD Il-equipped vehicles (1996 and later), the O.E. manufacturer's 8-year/80,000-mile warranty must have expired and a legitimate need for replacement must be established and documented.
Please note that Federal law prohibits removal or replacement of a properly functioning O.E. converter.
When replacement of the converter is appropriate (as outlined above), the E.P.A. further requires that:
1. It be installed in the same location as the original
2. It be the same type as the original (i.e., two-way, three-way, three-way plus air/three-way plus oxidation)
3. It be the proper model for the vehicle application as determined and specified by the manufacturer
4. It be properly connected to any existing air injection components on the vehicle
5. It be installed with any other required converter for a particular application
6. It be accompanied by a warranty information card to be completed by the installer.
Quote:
The installation of non-complying converters by a named party will be considered
a violation of section 203(a)(3) of the Clean Air Act, and the violator may be subject to a civil
penalty of up to $25,000 for each improper installation.
The installation of non-complying converters by a named party will be considered
a violation of section 203(a)(3) of the Clean Air Act, and the violator may be subject to a civil
penalty of up to $25,000 for each improper installation.
Honorary Moderator
So due to the fact that it is MANDATED that you are required to have one if it sees ANY road time I am closing it down.
that is the end of it. again replace it if it sees any road time.
Thread closed
that is the end of it. again replace it if it sees any road time.
Thread closed


