Here is a recent email I got from K&N

Dear customer,
We will have a filter for you in a few weeks. It will be a new part#
from us, E-2435. Please check back in about 3 weeks.
Thanks for asking, Rick

> ----------
> From: Dennis[SMTP:stook29k@accessus.net]
> Sent: Wednesday, March 21, 2001 10:39 AM
> To: Support, Tech
> Subject: Re: air filters
>
> Will you be making an air filter for the HONDA S2000??
> ----- Original Message -----
> From: Support, Tech <tech@knfilters.com>
> To: 'Dennis' <stook29k@accessus.net>
> Sent: Wednesday, March 21, 2001 11:00 AM
> Subject: RE: air filters
>
>
> > Air filters are rated by filtration efficiency, not micron size. Our
> filters
> > are tested by an outside, independent laboratory. They have been proven
> to
> > stop at least 99% of particles on a SAE dust test. This test uses
> particles
> > as low as the 0 - 5 micron range and goes up to 20 microns. For
> comparison,
> > a paper filter also stops 99% on the same test and the OEM minimum
> standard
> > is 96%. Foam is generally the worst media with a typical efficiency
> rating
> > of 75 - 85%. To get higher ratings, the foam must be more dense and
> > therefore way more restrictive. The "tack" characteristic of a K&N
> allows
> > for increase filtration without loss of flow as well.
> > The testing procedure used is SAE J-726 using ISO Coarse Test Dust.
> > This test is the standard of the air filter industry. The test procedure
> > consists of flowing air through the filter at a constant rate (airflow
> rate
> > is determined by the application) while feeding test dust into the air
> > stream at a rate of 1 gram per cubic meter of air.
> > As the filter loads with dust the pressure drop across the filter
> is
> > increased to maintain the prescribed airflow rate. The test is continued
> > until the pressure drop increases 10" H2O above the initial restriction
> of
> > the clean element (in this case .78" to 10.78" H2O). At this point the
> test
> > is terminated. The dirty filter element is then weighed. This weight is
> > compared to the clean element weight to determine the total Dust
> Capacity.
> > The amount of dust retained by the filter is divided by the total amount
> of
> > dust fed during the test to determine the Cumulative Efficiency.
> >
> >
> > The K&N filter achieved the following results:
> > Dust Capacity: 305 grams
> > Cumulative Efficiency: 99.05 %
> > OEM Paper Cumulative: 99.29%
> >
> > -----Original Message-----
> > From: Dennis [mailto:stook29k@accessus.net]
> > Sent: Wednesday, March 21, 2001 6:42 AM
> > To: tech@knfilters.com
> > Subject: air filters
> >
> >
> > How many microns will the K&N filter remove?
> >
> >
> >
> >
>
>

 

They may sell filters to some, but not me. After getting stalls from them for over a year I have three different filters I can use in my car and will not be in the market for another. I would not hold my breath waiting.

 

Contact Import Developement and get the "other" filter". It is sweet and I can hear and feel the difference. JP....the last filter you will ever buy.

 

P.S. If you want to freak out K&N with a technical question, ask them if they are using Calibrated Arizona Road Dust (from the AC Spark Plug Company) for their testing.......and yes I am dead serious!

 

how will it work?

 

Does anyone know if the new polyester MG Racing filter has been tested in this manner, and if so, what the results were?

Giampiero? Greg?

Thanks,

Ted

 

Max POWER at the wheels
Stock = 199.7
MG Racing = 201.5
JR = 201.6

Max TORQUE at the wheels
Stock = 132.0
MG Racing = 132.2
JR = 133.3

http://www.s2000online.com/forums/showthre...p?threadid=9382

 

Tedster;our filter in polyester due to the eletrostatic characteristics is guaranteeing an excellent filtering power.To be exact 80 microns filtering power.
The results obtained (I am not talking about power increase )have clearly confirmed the excellence of this product in comparison with other kind of filter materials both in terms of air permeability and of filtering power.(various world rally and formula 1 team use filter in polyester)And this is a double performance difficult to obtain with the oil filled cotton and in sponge,which offer either air permeability or good filtering power and .... it's almost always up to the engine to "bear the brunt" of this inconvinience.
Our filter,as already stated before is a 100% dry filter;no oil additive is used.
Very easy to clean ;you need only blow high -pressure air into the side opposite to the inlet.