i just installed the FIPK, and i think its great, it was a real bitch to get the K&N piping onto the maf unit tho. sounds good, got a slight bit of performance, and well see about the gas mileage after my 1400 mile trip tonight thru the 5th.

 

because of this poll and all of the neg's on the K&N, I took mine out and bought an OEM from the stealership, thanks

 

mine makes weird sounds..

 

i've ran them on all of my cars (race and street) for my yota i run a k&n pre filter over my reg k&n filter

http://www.ad-discountperformance.co...roducts_id=668

 

Well then there's really no use in running the K&N.
The pre-filter is doing all the work.
Since it's tighter than the K&N, anything that gets through the pre-filter is going to easily pass through the K&N.

Might as well just bend up a wire frame for the pre-filter and call it done...

Someone else, on another board, runs a vacuum cleaner bag over his K&N as a "pre-filter" and it's the same thing. Might as well save a few bucks and just make a wire frame for the "pre-filter" and not use the K&N.




Fred

 

In the next couple of oil changes I am going with eitehr something the guys on the site recommend or OEM...
I have a K&N....
While it initially felt like it gave me more power...
It now doesn't...
What it is giving me is a pain upside my head...
With throwing off my MAF and getting that CEL to come on and really getting under my skin...
Also aftre reading alot of what people have said...
I think it is definetly worth my while to get that k&N outta there...
Now every day I get it I wonder if I am killing my Runner more...
Would have been good in the olds though...
You could have thrown a handfull of dirty into taht intake, and it would still run...
But for the Yota's I think OEM or something above K&N is where I am gonna go. and what should be used....

 

I find the whole argument about K&N and the problems their filters cause is silly, I have been useing K&N filters both drop in and cone style for about 6 years now and none of my vechicles have shown any signs of damage caused by these air filters. In fact I just oiled the wifes filter this morning, she put 55+k on her filter and I have not cleaned it once. just the oil has been used.

This some info I found From K&N.

We want to make sure that when you buy a K&N Lifetime Air Filter or Air Intake System, you can be confident your vehicle's warranty will not be impacted. We also want you to feel confident that even if you experience a difficult dealership, we will step-in and resolve the issue, so you won't have to. Therefore, we make the following Pledge:

K&N pledges to our customers that they will not be taken advantage of and charged for a repair due to a dealership warranty denial blamed on the presence of a K&N product. (See Details Below).

1. A written statement or repair order from the dealership in which the dealership blames the problem or warranty denial on a K&N product.
2. A written request to the dealership to send the broken part directly to K&N at K&N’s expense. We will need the evidence.
3. Your cooperation in helping us pursue our claim for reimbursement from the dealership.

 

So I had a Chevy Caprice two years ago this time. I put in a K&N and I noticed a difference right away. This car was a slug, streets and highway. I put the K&N airfilter in there and I was going 70 down a 40 in no time. there was a noticeable difference there, and the airfilter I pulled out wasn't terribly dirty either. Now I put one in my 4runner and I didn't notice a thing! So I went back to OEM recently and didn't notice any loss in performance.

 

I got hardly any performance out of the K&N for the 3VZE. The dyno sheet that came with it shows that it should bring up the HP by a whole 3hp! If it did, I can't feel it. But, I will tell you this.. It makes it sound awsome. About 3k rpm...full on it.

 

I put a Drop in K&N filter in my 90 pickup and trimmed the air box! I love it, It gives it noticably more acceleration. I havent cleaned it yet and I have seen no particles in my air intake. And if you notice dust particles you can always add a precharger filter to the K&N to stop the dust from reaching the filter

 

Well if you add a prefilter then there's no use in using the K&N at all, now is there ....




Fred

 

I can agree with that! I dont drive in any dust so I dont use one.

But a K&N with one layer of fabric to keep out the dust is better than the thickness of the OME filters correct?

 

I don't use K&N i have read many reports about how much dirt they let pass. If your ever curious just hold the filter up to the light, when u see light through it, thats dirt going into the intake. I have had the K&N on other vehicles and did notice a considerable amount of dirt in the intake. As for now i stick with oem. it works fine, and the power gain u recieve from the K&N is not huge. Check this site out, it has a ton of info. The guy seems to know what he is talking about. http://www.bobistheoilguy.com/airfilter/airtest1.htm

 

hmmmm dust, yep 233000 miles of it, 233-40= 193, well my weber 32/36 and my k&n have put on 193000 miles

 

Yup, if you use a prefilter
then the prefiler is filtering everything. It's doing all the filtering, so what's the use of the K&N then ? Nothing, it's simply acting as a frame to hold the prefilter.
There's a guy out here that uses vacuum cleaner bags as a prefilter for his K&N.
Talk about being, mmmm, well I be nice, talk about be silly.......

Fact is that K&N's allow more particulates through than OEM style filters, period. K&N admits it and it's easy to see if you live in a dusty environment.
IF you believe or don't believe that the increase in particulates is bad or not for your engine is your own personal thing.
Myself, I'll never run run again after seeing for myself.
There's no reason to.




Fred



Fred

 

I wish this debate would go away since almost all filters work pretty much the same and none have contributed to any engine failing when properly installed. If K&Ns were as bad as some people portray them then they'd be outta business and they wouldn't be run on desert vehicles which I see alot of.

I ran a K&N on my turboed sports car for over 6 years and turboes have very minimal tolerances for stuff getting past the filter and my turbo vanes had normal wear on them. I'm sure a NA engine will not fail from a K&N filter or any other major manufacturers filters that are out there.

On my Runner I not picky but I don't want the maintanence associated with re-oiling so I just use an OEM version but that doesn't mean I'd never use a K&N again.

 

the prefilter doesnt filter everthing , there are particulate size differences that filters filter out, gas turbines ( GE frame 7fa) have 3 types of filtering systems each one haveing different duties, same as filtering water, 10 micron to 5 micron to 1 micron, on my point its more of a personal pick, if you use oem or after market cool ok but i bet there is one point we can agree on------------ use some type of filtering system, i have really seen no filters used i ask why-- for more power??? what ever

 

i like the k&n mainly for the throaty sound you get from the intake...i do notice a little of an acceleration improvement.

i dont live in an area of fine dust so particles getting though has never been an issue.

 

I use a K&N drop in during the wintery/wet weather when there is little dust to speak of. I alternate to an A/C Delco in the dry months when there is lots of dust. ACD has really high rating for filtration from what I've read on BITOG.

 

What the prefilter doesn't catch the K&N certainly WON'T catch.
The prefilter is a filter for smaller particles than what the K&N is.



Fred