Mostly all of the hate on K&N is hearsay...
Been running K&N for 14 yrs. NO problems, I do run the cone filter, MonteDon't Hate ????? do some reading and you will see there JUNK if you feel like screwing up your truck by all mean's go ahead but don't sucker people into following you . Dodge has done studies to show they will allow dust to enter the turbo no thank's I think I'll stick to the STOCK air Box it flow's just as good . but doesn't allow dust to enter the system.
Don't hate... .
I'll flip that coin. People who actually use K&N filters don't have a lot of issues with them. Oil sampling doesn't show any additional contamination of the oil over factory paper filters. Also, you can read about K&N's third party lab tests of "contaminated" mass airflow sensors on their site. Mostly all of the hate on K&N is hearsay, and internet chatter. Some people have had actual issues, but some have also had factory parts fail... .
If you plan on power upgrades, they work well to let the engine breathe a little more efficiently. If not, they don't do a whole lot, a louder turbo whistle...
Wasn't comparing it to anything, just stating a fact, I don't have a problem with it,why should you, Take care,MonteMost people can't tell you they have problems with K&N filters because they won't beieve they have a problem. Brand blindness is a big issue with filters.
Every statement I see always wants to compare a turbo diesel truck to a 2 stroke naturally aspirated motorcycle. How do you draw a valid compaison there? It is done and if it works on the motorcylce it MUST work on the truck.
The facts are the oiled filters do not perform as well across the broad range of air flows. The K&N taps out way before the stock filter. Not a lot to argue about there. Unless you do the oiling EXACTLY right you are a) ingesting oil or b) ingesting dirt into the intake tract. Even oiled correctly at high flow the engine is ingesting oil and dirt.
Don't be hating on the facts the test uncover, its the reality not the marketing spin. The factory deep pleat filter is good for close to 500 HP and that is more than the engine will take in a constant duty cylce anyway.
... Unless you do the oiling EXACTLY right you are a) ingesting oil or b) ingesting dirt into the intake tract.