No need to compromise low restriction for efficiency and engine protection.

Why oil a cheesecloth air filter? Regardless of manufacturer (and they are all fundamentally the same), why is this necessary in the first place? Oiled gauze filters afford low restriction when new or clean. Once loading occurs, the restriction curve rises almost vertically. Plus, they hold very little dust so maintenance is often required. What good is a performance filter if it only works as designed when new? How long does it remain in that condition?

Whenever a switch is made to a oiled cotton air filter, efficiency and engine protection are always sacrificed. In most cases, factory paper filters are approx. 98-99% efficient. Gauze, on its best day, is 95% and each time it's cleaned and oiled, the orientation of the fibers changes and it soon becomes even less efficient. In many cases, efficiency enters the high 80% range. This assumes that an even distribution of oil is applied. Too much is a problem and if you miss a spot, the gauze does almost nothing on its own. Regardless of where you live, dust is an issue. It contributes to significant wear and is the leading cause of engine oil breakdown.

It required a great deal of time engineering a performance media that maintains extremely low restriction when new and dramatically improves restriction performance once loading begins when compared to competitive products. Plus, oiling and solvent cleaning are never required!

Take a look at the loading graph on our web site and you can determine the performance and efficiency comparisons of many filters.

The tests we conduct are based on SAE/ISO 5011 protocol and can be repeated anywhere in the world. The tests rely on standard air or SCFM rather than using random characteristics. We also test with fine dust rather than coarse. This represents real world conditions and fine is much more difficult to trap than coarse. We also count the amount of particles that go through a filter as well as determine the size in microns ranging from 5 to 1 micron and below. Unlike the majority of intake manufacturers, we manufacture our own filters and intakes and do so in our Forest Park, IL facility.