K&N air filters......yay or nay ?

[Mc Tool]

I have put them on a lot of motors over the years ....believing they were a good thing but I just read on google that they mess up mass airflow sensors , dont filter as well as a paper filter and dont add hp ( I knew that they dont add hp).
I just bought another one and was googling to make sure its pre-oiled ( it is ) cos the last one wasnt but this one looks like it is

 

[Scott Danforth]

It's a fine line on them for too little oil and they do not filter properly, or too much oil and they foul the MAF

 

[Mc Tool]

It's a fine line on them for too little oil and they do not filter properly, or too much oil and they foul the MAF

Yeah ,thats it , this is the 1st car I have intended to fit one to with a MAF ....everything else was carbed. And , to oil them properly takes a while for the oil to wick over the whole filter if you dont drench it . The last paper ( Ryco ) filter has lasted 60,000kms and still looks ok ....once I got all the bugs and leaves out of it

 

[redneck joe]

**** maybe that was the issue all along with Betsy

 

[Bob_VT]

I use a "disposable" K&N in my older Tacoma - no issues. It actually depends on your area, driving and amount of use..

 

[Jeff J]

I like K&N filters but feel 2 are needed because the cleaning and oiling process takes a considerable amount of time. It’s nice to have one ready to go in when the time comes.

 

[alldodge]

Nay

 

[Bondo]

I have put them on a lot of motors over the years ....believing they were a good thing but I just read on google that they mess up mass airflow sensors , dont filter as well as a paper filter and dont add hp ( I knew that they dont add hp).
I just bought another one and was googling to make sure its pre-oiled ( it is ) cos the last one wasnt but this one looks like it is
View attachment 419447

Ayuh,..... My current pickup had one in it when I bought it,...
1st thing I did was a full service on the truck,...
When I inspected the air filter by shining my droplight through it, It was like shining a light through a screen door,....
A Napa paper filter replaced it that day,...

 

[flashback]

Those things got popular when we were putting glass packs on our old cars. Less restriction of exhaust and intake added a few ponys. It sounds good anyways.

 

[jimmbo]

I want my engines to last, so no bloody way would I ever use one of those pieces of cr**