As a former Chrysler Dodge Jeep service advisor, I've seen particals get past a K&N filter used in EXTREME dusty conditions. The particles ruined the engine. Guess what happened... K&N replaced the engine just like they said they would.

 

X2. does an excellent job.

 

FWIW, I ordered a filter from Quadratrec in Feb.
The one I ordered is a synthetic dry filter.
To clean all I have to do is rinse it off and blow dry and reinstall.
No oiling required.
Here is the info on it:
http://www.quadratec.com/products/pr....05+&submit=Go
Iv had it in since Feb and ,to me, it works great.
Hope this helps.

 

Wow that is good to know they stood behind it. I dont know that they recommend their filters for extremely dusty conditions though

 

K&N was founded and created by Baja desert racers in Southern California. They actively sponsor the Baja 1000 and other desert racing activities.

They know a thing or three about sand and dusty conditions.

 

1. What allot of people don't understand is some desert racers rebuild their engine before each race.
I've see where talcum powder dirt has put a chase vehicle out of the race, and when taken to the dealer for repair, warranty denied because of K&N use,( the race vehicle also put out of the race, that same talcum powder dirt ruined eclectic fan motors to coolers )
(( racer's you know what I mean ))

2. If the JK is your daily driver and depending on where you live " choose wisely if you want a 200,000 mile engine."

filtration is the key to the engine's longevity.