There is nothign wrong with K&Ns. Ight... you arent simply questioning its ability you are telling us its ability is not sufficient, there was no questioning involved.
I still dont see how the silicon is floating around in the air...I mean there is dirt in the air but how much of it really is silicon? not much
I also pulled this off a board
> Blake Qualley
> Blum, Richard wrote:
> > Dear sir,
> > What you have posted is 100% false and misleading. It has been
> > around
> > years and has no facts to back it up. Foremost, K&N does not make a
> > for a Cummins, V-12 or any earthmoving or mining equipment. That
> > immediately shows it is untrue.
> > Our filters are tested by an outside, independent laboratory. They
> > proven to stop at least 99% of particles on a SAE dust test. This
> > test
> > particles as low as the 0 - 5 micron range and goes up to 20
> > microns.
> > 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
> > efficiency rating of 75 - 85%. To get higher ratings, the foam must
> > be
> > dense and therefore way more restrictive. The "tack" characteristic
> > of
> > allows for increase filtration without loss of flow as well.
> > The testing procedure used is SAE J-726 using ISO Test Dust. This
> > test
> > the standard of the air filter industry. The test procedure consists
> > flowing air through the filter at a constant rate (airflow rate is
> > determined by the application) while feeding test dust into the air
> > 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
> > 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
> > is terminated. The dirty filter element is then weighed. This weight
> > compared to the clean element weight to determine the total Dust
> > The amount of dust retained by the filter is divided by the total
> > dust fed during the test to determine the Cumulative Efficiency.
> > The K&N filter achieved the following results:
> > Dust Capacity: 305 grams
> > K&N Cumulative Efficiency: 99.05 %
> > K&N Initial Pass Efficiency: 97.11 %
> > OEM Paper Cumulative: 99.29 %
> > OEM Paper Initial Pass: 96.47 %
> > Holding the filter to the light is useless, pin holes are normal.
> > That
> > what makes a K&N filter. There are actually dozens of microscopic
> > that cross these holes that when treated with oil become somewhat
> > transparent but still capture and hold the very fine particles.
> > Spray
> > on a piece of paper and it will be transparent too. On the same
> > hand,
> > allow the filter to flow more air than paper or foam. The filter is
> > 4
> > cotton gauze unlike some competitors synthetic material filters. The
> > synthetics do not have the very small fibers that natural cotton
> > does.
> > the oil can be pulled off of a foam filter contaminating electronic
> > It will absorb into cotton and stay in the media.
> > We got started over 30 years ago making filters for motorcycles and
> > racers. The filters did so well that these guys wanted them for
> > their
> > and trucks. We started making filters for these applications and
> > here
> > today. If they did not work, we would not still be here and growing
> > year.
> > We now make filters for Chrysler/Mopar, Ford Motorsports, Edelbrock,
> > Engines, and Harley Davidson. We come as original equipment on the
> > Mustang Cobra-R. We even made filters for the Apache helicopters
> > used
> > Desert Storm and Iraq because of maintenance problems with the
> > paper design. Now we are on the new unmanned Predator plane being
> > used
> > Afghanistan and Iraq. If they work in these conditions they will
> > work
> > you. Links to the filtration tests are on our web site at
> > http://www.knfilters.com/images/factstab1.gif
> > http://www.knfilters.com/images/factstab2.gif