I have had a K&N drop in stock replacement filter for a few years now. I am starting to get tired of cleaning it and waiting for it to dry and then "recharging" it. I have been thinking about going back to the throw away paper filters.

I cleaned out my intake recently:
https://www.ranger-forums.com/forum2...ad.php?t=37633

It looked really nasty in there. Could this be caused by the oil from the filter and the K&N not catching all the dust?

Anyways, I was wondering if anyone had any real data on whether or not K&N air filters actually do anything to increase HP or improve gas mileage.

 

i would get an amsoil filter, its not oil based or go back to a stock filter.


i tired them and i think the stock filter does just fine, plus no oil.

 

I like my amsoil filters personally, and as stated, no oil......

 

is there any advantage though to either the amsoil or k&n filter over the stock filter?

 

Put it this way, I noticed a difference going from the stock filter to a K&n, and my mpg slightly improved. Now going from the K&n to an amsoil, no difference, but it is still better than a stock one, and there is no oil to f*ck with and mess up your intake.......

 

or try the new AEM intakes.....they are an oil-less filter.....my brother just got one for his Cummins.....it was well built and was comparable with the price of a K&N FIPK...

 

If you just want an enhanced stock replacement, get the Amsoil. A microfiber dry type filter. I'm using one and it's fabulous.

I had both the K&N and an oiled one based on foam. Got tired of cleaning them and neither could filter as well as the microfiber.

The K&N in particular is pretty good at letting particles through. It's also known for shedding oil all over your MAF if you aren't absolutely dead on with the oiling.

It was a good design -- for it's time. I think that oiled gauze is outdated and has been superseded by the oiled foam and microfiber filters.

 

Can anyone tell me what gains are to be expected with these aftermarket intakes compared to the stock intake and filter?

 

John, I definitely trust your opinion. When you say the amsoil "enhanced stock replacement" is fabulous what do you mean? Does it increase horsepower? Does it filter out more dirt particles? Or do you just like it because it is reuseable?

 

Also what does the Amsoil cost compared to a stock one?

 

Doesn't someone on here sell amsoil products? Link to page?

 

None.

 

Yup, they flow SLIGHTLY and i mean slightly better...but its nothing significant (less than 2 hp in perfect conditions). they do win in the convience dept. because for the price (about $40) u have a filter for a life time...comapred to $5 per filter change...but it takes almost 100,000 miles of driving to make that up.

for me, i use paper filters with the stock intake. change the filter every year or 12,000 miles (unless u drive dirty conditions then change it more often...this is where an Amisol or AEM benefiets) and u wont have any problems.

visit bobistheoilguys site to find out more on airfilters...

 

Hi, sorry, forgot to come back in this thread. Thanks for the heads-up, Marc, and the kind comment.

It flows better than stock for longer. You can probably get higher flow out of gauze -- but the difference is slight if any and gauze lets larger particles through. I can't see any difference in mine vs. the K&N and the Amsoil foam filter I owned.

I like the Amsoil because it does flow well for long periods of time, is reuseable, and so forth. It's cost effective for me because since I have the "preferred customer" membership to get my lubricants cheaper I get dealer cost on the filter as well. There are other microfiber (or nanofiber, don't remember what they are, lol) filters out there now I do believe, and I don't know as the Amsoil is superior or not -- it's just a good deal for me and I like it.

I believe the Amsoil filter was around $30 or so. You can get list price off the Amsoil web site.