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Discussion Starter #1
I ran a K&N on my Duramax until I had an oil analysis done. It showed everything normal except an elevated silicone reading. May need to find some type of foam filter that breathes more than the stock one.
 

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Yes, Im going to switch to the Uni-Filter myself. Its easier to clean and more suited for off-raod conditions IMO....

...I just always refer to the K&N because its what most people know.

Uni-filter is the way to go off-road.
 

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K&N filter's aren't what they are talked up to be in my opinion.They dont restrict enough.They allow alot of dirt and particals to pass into the engine.If you do run a K&N you need to run a Outerwear,but why pay $50-$70 for that when you can get a UNI for $25 and have just as good of a filter that protects better and flows just as good?
 

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Discussion Starter #5
Any suggestios on where to get a Uni-filter? Does the DJ jet kit address using this filter or just the K&N?
 

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The Dyno kit only specifies a difference in "exhaust" for jetting, and not filters if I remember correctly...the Uni-flow will do fine.
 

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Duramax,How does a K&N add Silicone to the engine? Do you mean Silica??

As far as filters go..If have to decide if you want more flow or better filtration..
Nothing flows better than the K&N, And it can filter well, it depends on how much oil you put in it and how much dirt collects on it, the dirt actually increases filtration..

The Uni-filter does filter better, but the cost is flow, it does not flow as well, it is a compromise.. not a bad choice, and certainly a bargain..but you can't have the highest flow AND the best filtration!!
 

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Duramax,you can get a UNI from Rocky Mountain ATV..
 

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Duramax, I will agree with your observation. I had a K&N on my 400ex when I raced and in dusty mx conditions it left a sandy residue in the intake tube. I switch to a uni and the residue went away. I have decided to stick with foam on the dirt.
 

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I bought a Uni-flow today...I just got the Rinny back from the shop. It just wouldnt move and I didnt have time to look at it much.

Turns out carb was dirty. A good carb cleaning and she's as good as new. Ill stay with the Uni-Flow...

...I know it wont flow qiute as much as the K&N, but when riding off road in dirt/dust it will keep more trash out.
 
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