I've had a generic cone filter on my car for a while and have had no trouble with it. I was thinking the same about my spark plugs, until I changed them and got a performance (mostly gas mileage) increase . .

I've never tried one of the spendier K&N cone filters. I've read that some of them have an integrated velocity stack type air horn shape to the inner flange where the intake tube mounts to, and that they're worth the 40-50 bucks.

So (and I looked through a few old threads) - has anyone ever used a generic cone filter and then upgraded to a K&N version? Could you feel the difference?

I'm looking into the last few tricks I can play on my NA to make it fast . . .

 

NO! the cone is almost better in a way becasue it is not oiled. that is y the oil from the k&n gets pulled into your motor think about it.. its wet basically and it gets pulled into the motor no good in my opinon. and no the filter will not change the performance that much. the colder the air goin in will. hope this helps

 

dont K&N filters add horse power? more than 10?

 

Get your facts strait, Genric (ebay) fitters are known to fall apart and and sucked into the engine. K&N filters are LIghtly Oiled on a cotten mesh. The Oil will not get sucked into the engine like the above poster said.

 

no oil will get sucked into the engine unless you drown it in oil!!! I have an HKS AFS that uses oil to keep the filter from drying out..it also helps keep dust out....the K&N will pay for itself because you can reuse it again and again...as far as the oil getting into the motor..guess BIGRTII does not realize the motor gets oil injected into the motor via OMP....follow the directions that come with the filter and you will be fine...also, you will not feel or add any HP due to the fact that you already have an atermarket AFS...but the K&N will last longer than your generic cone filter....guaranteed for life I think!?!..good luck

 

ya see..there ya have it..from Train and Trav..hehehe

 

Almost all generics are a paper mesh, the K&N is a cotton mesh, making it reuseable. Maybe even if there isn't a performance difference, there is still a cost benefit with not having to buy new ones or worry about it deteriorating as fast.

 

what do you base this on?

 

the k&n filters better too

 

what plugs did you buy? i need new plugs and my gas mileage is horrible

thanx

 

always NGKs

 

K&N filters come w/ a million mile warranty.

 

K&N filters generally show a small power increase over other brands. However, air filter power increases are based on horsepower, so a lower-hp engine like yours will see very little increase.

I tend to agree with other posts here, in that the main advantage of a K&N filter is the low price over time. Also, it's a top-quality filter that is used in professional racing and military applications.

1) The K&N oil does not get pulled into the engine by any significant amount, if at all.
2) Even if the oil did get pulled into the engine, rotary engines are designed to burn oil. Think about it.
3) What does cold air have to do with a mesh cone filter vs. paper cone filter?

 

so what the right k&N part number for the S5 NA's for those that use them?

 

The car is running a 14.9 and is 2550 lbs with me in it doing the run, so that's roughly 150rwhp. If I can get a few % more power from it than it will be worthwhile to me, and my paper mesh ebay cone is a piece of junk. I don't want it to be a part of my car any more.

I just purchased a cotton mesh K&N clone off ebay and will report any gtech difference if I can get it installed before doing some more header / main cat surgery.

To the poster asking about my plug choice . . they were NGK in the stock heat range. Cost about $22 and would pay for themselves in ~1500 miles @ 2.20 a gallon for the price of gas, which is what it was when I bought the plugs.

 

I think everybody has pretty much covered the advantages of K&Ns alredy. Last week I helped my brother clean his K&N on his 240 and it was a very simple procedure. As for gaining horsepower, what they mean is that it FREES lost horsepower from low flow rates. On the back of the box (I think) K&N did a test against other leading air filters versus their filtering rate and flow rate. I'm sure they have the best flow rate (or else why would they put it on their own box) and other than that you can't beat the 1,000,000 mile warranty. Only filter I'll ever use.

 

ill stick with HKS foam filters

 

I used to have that on my 87 N/A. The foam actually breaks apart after a while. When we ripped the intake off the car there were small pieces of green foam everywhere. I don't even want to think about how much of it made it into the engine.

 

Does anybody have any info on the Racing Beat foam filter? I ordered their catalog and by what they say it sounds almost if not as good as K&N. Reusable and all... Anybody use it?

 

K&N is said to trap the most dirt out of engine that any other filter.

I've heard bad stuff about foam filters, like they allow more air in (more possible HP), but in return they allow more dirt in.

I use a K&N.

 

there is a few that fit, what part number do you use?

 

Amsoil filter's filter alot better than a K&N from what I've heard.. I just picked up a HPI one for my car, and it made a noticeable difference vs. the stock airbox.

 

http://www.ftooc.org/contents/pages/project/filter.htm

Here you are bashers!! you can say what you want i will say that paper does not filter as well as k&n but the motto is you get what u pay for (in most cases) and cotten does not have the best flow rate it is tested. yea its posed on the package but take a look for your self the hks not as good for filtering but a better flow rate. but the amsoil was the best filter and makes K&N look second rate. amisol is here http://www.performancemotoroil.com/KN_test


Want more sources please inquire!!!

 

just to clear this up a little...

the reason some people say the K&N leaks oil into the engine is b/c of the reuseability. alot of people over oil the filter when they clean/recharge it. this usually results in sensors glazed over with oil; i've heard MAF and front O2 sensors in particular.

K&N is fine... many people have run it for long periods of time without any problems. i've heard napa and apexi make better filters, but who the hell can tell without a TRUE independent 3rd party comparison - i.e. not from a website that is obviously biased (and lauding the filter that they are selling...)

if you're worried about performance upgrades worry more about the intake piping length and shape instead of just the filter.

if you do get a K&N don't be a fucktard and spray the whole bottle of recharge oil into the filter. someone probably did this, posted on a forum that the filter ruined his sensor, and here we are today.

 

I got a Vibrant Technologies cone filter for $23. High quality, but its an off-name so its cheaper.

-Joe