Banks headers installed - now K&N?
#1
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Banks headers installed - now K&N?
Okay - got the famous 2 lower bolts finally tightened up on my Banks Headers . Since that fun is over with - should I put one of those $200.00+ K&N filter kits on it so it can suck in air better --- that stock one with the big box seems sort of "stuffy".
..or is there a better air intake to use? After that, I guess I need to think about what to do from the cat back now that the headers are on...
Thanks for the read,
Mark
..or is there a better air intake to use? After that, I guess I need to think about what to do from the cat back now that the headers are on...
Thanks for the read,
Mark
#2
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Year: 1993
Engine: 4.0
From what I've read the stock airbox flows enough to suck more air than the engine could ever need. I've also seen tests showing that CAIs do help, theoretically a cowl intake will help the most since it pulls air from outside the engine bay.
#4
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Year: 2000
Model: Cherokee(XJ)
Engine: Golen 4.6L
Either go with a real cold air intake that pulls air from the cowl or just use the stock airbox with a K&N reusable drop-in filter. The under-hood cone filters are not going to give you significantly more filter surface area, if any.
FYI, early XJs had a rectangular hole in the front bulkhead, right in front of the airbox inlet hole, to allow cold air to go into the airbox. At least some of them also had a tube that went from the bulkhead hole to the airbox hole to block out hot air from under the hood and only let in cold air being rammed through the grille. In later XJs, that hole was closed up so that the airbox is always sucking hot air from under the hood. You can still see where the hole should have been, but it's just a blank indentation there. I'm not sure when the change was made or which configuration the '96 has.
Point is, if you buy one of those so-called "cold air" aftermarket intakes that takes air from under the hood, you're going to get warmer air than the stock airbox would get from the hole in the firewall. I removed my airbox to make room for other stuff (and replaced it with a cowl intake), but if I hadn't, I might consider using a drop-in filter with the stock airbox and finding one of those cold air tubes from an early XJ. The hole is blanked over in mine, but that's not something a saw blade or cutoff wheel can't remedy.
FYI, early XJs had a rectangular hole in the front bulkhead, right in front of the airbox inlet hole, to allow cold air to go into the airbox. At least some of them also had a tube that went from the bulkhead hole to the airbox hole to block out hot air from under the hood and only let in cold air being rammed through the grille. In later XJs, that hole was closed up so that the airbox is always sucking hot air from under the hood. You can still see where the hole should have been, but it's just a blank indentation there. I'm not sure when the change was made or which configuration the '96 has.
Point is, if you buy one of those so-called "cold air" aftermarket intakes that takes air from under the hood, you're going to get warmer air than the stock airbox would get from the hole in the firewall. I removed my airbox to make room for other stuff (and replaced it with a cowl intake), but if I hadn't, I might consider using a drop-in filter with the stock airbox and finding one of those cold air tubes from an early XJ. The hole is blanked over in mine, but that's not something a saw blade or cutoff wheel can't remedy.
#5
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Year: 1990
Model: Cherokee
Engine: 4.0
A K&N air filter must be oiled to properly filter. That oil can reek havoc on MAF sensors. That's why I do not run one on my Z28. Not sure about your Jeep, mine is a 90, but if it has a MAF I wouldn't use any type of oiled filter. The air intake setup on the XJs is decent enough, wouldn't mess with it. Throw a good paper filter in it and let it be. Spend that money on an exhaust system.
#6
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Year: 1993
Engine: 4.0
http://www.fourwheeler.com/how-to/en...take-shootout/
A cold air intake might actually be beneficial if nothing else just for the smooth inside of tube, I know that it's a tj but it's still similar.
A cold air intake might actually be beneficial if nothing else just for the smooth inside of tube, I know that it's a tj but it's still similar.
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#8
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Okay guys - saving money for next on the to-do list, then. Extra-shaky... yup... found the hole in front of the air cleaner box... lot of good that does with no connection to the air cleaner box!! Just warm air being sucked in :-). I guess I'll change the thermostat next and check that "check engine light" next..... never ends duz it?...
Thanks guys,
Mark
Thanks guys,
Mark
#9
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Year: 2000
Model: Cherokee(XJ)
Engine: Golen 4.6L
I haven't had any issues at all with mine. I'm running the Spectre cowl intake, which has a K&N cone filter in the tube. If you follow the instructions and don't over-oil it, it's fine.
#10
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Year: 92
Model: Cherokee
Engine: 4.0
The spectre cowl intake isnt available anymore. I run one and love it. Id highly recommend one. THOR has gone back into production on their cowl intake. http://www.trailheadoffroad.com
#11
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Year: 1999
Model: Cherokee
Engine: 4.0
I have ran K&N filters since the 90's starting with race cars and HP street cars. A properly serviced K&N filter is one of the best made as far as flow and filtering. I have saw on the Dyno using both a dry and it in the numbers not a great deal but an increase. I use the stock air box on my 99 XJ with a K&N filter due to usage off-road dust/dirt.
The cost of a high quality dry filter used on anything other that a pavement princess is not cost effective if only changing once every year or two. I have Wix paper filters on 2 of mine a 2013 Town Car and a 2004 Ford High Top conversion van.
The cost of a high quality dry filter used on anything other that a pavement princess is not cost effective if only changing once every year or two. I have Wix paper filters on 2 of mine a 2013 Town Car and a 2004 Ford High Top conversion van.
#12
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Year: 2000
Model: Cherokee(XJ)
Engine: Golen 4.6L
I actually bought an extra cone for mine so I don't have to wait to drive the Jeep when swapping them. I take one out, clean it and go about my business while it's drying, driving around if I need to. Then I come back later, oil it (per the instructions, using the correct amount of oil per the K&N table), seal the freshly oiled filter in a gallon ziplock bag so it's ready to use when it's time to swap them again and put it back in its original box to live on the shelf.
At some point I'll put a K&N drop in panel filter in my Subaru, and I'll probably do that one the exact same way.
At some point I'll put a K&N drop in panel filter in my Subaru, and I'll probably do that one the exact same way.