Topic: AEM or K&N

[huntingbuck101]

I need to change my air filter in my TJ and have been reading about AEM and K&N. I'm going to do the drop in kind rather then a cold air intake because I've read that a lot of people go back to the stock air intake after getting one. Plus I'm really not looking for more power,with 4.88's I'm just fine. What I am looking for is a few more mpg. I know this will not give much or any increase in mpg but with a few other mods I want to do I would like to see 1-2 mpg increase.

from what I can tell the K&N would give me the best flow but the AEM would give me the the best filtration.
would the AEM give me all the air my 2.5 can handle? I also have a 4.0 tb but not like that matters.

would the AEM supply all the cfm my motor can take in? If not would it be worth the risk of possible a bit more dirt with the K&N for more flow?

[Jesse-James]

I'd keep the stock unit. Not worth it to have crap bypassing the filter if you ask me. You most likely won't notice the difference in power anyway.

[95yjman]

I just got a K&N air filter in the stock air box.  Seems to work pretty well heh

[dexetr30]

I have a drop in K&N and I didn't notice any difference power wise or mpg when I made the switch. Maybe it would make a difference with the 4.0L throttle body. I do like the fact that I don't have to keep buying O.E. paper filters every so often with the K&N.

[aw12345]

True but the K and N needs to be oiled and washed every so often or it will allow small particles to pass true. Or in other words when its not serviced properly its not as effective as the stock filter

[dexetr30]

True but the K and N needs to be oiled and washed every so often or it will allow small particles to pass true. Or in other words when its not serviced properly its not as effective as the stock filter

Yeah, just to make sure... I clean and oil it every other oil change.

[jfrabat]

Yeah, just to make sure... I clean and oil it every other oil change.

This reminds me I should clean and oil mine...  Have not done it since I put it in over a year ago!