Here’s an interesting test from a neutral party;https://www.youtube.com/watch?v=sJ3L-E-ufYo
Looks like you need to decide between filtering and slight performance gains. :https://www.youtube.com/watch?v=GS69owXpGdY&t=433s
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Here’s an interesting test from a neutral party;https://www.youtube.com/watch?v=sJ3L-E-ufYo
Looks like you need to decide between filtering and slight performance gains. :https://www.youtube.com/watch?v=GS69owXpGdY&t=433s
Oh shit it is "rigged":)'popcorn and coke', going for a 1000-mile trip in the AM, taking out my filter next week, hopefully, it won't let me down, it is an OEM, and was not listed, scary.
Best comparison would be 2 identical bikes with identical fluids, exact same mileage, 20,000 mile trip, side by side, same route, analyze the oil.
I have some friends who are K&N 'true believers'. Their loyalty seems to be based more on faith than on facts. When confronted with data showing how poorly their filters work, they usually blame it on 'rigged tests' and 'greedy manufacturers'. I've wondered what drives their zealotry, and found a quiz that might offer some clues.
Air Filter Quiz
Question #1 - Which filter pictured below has more pleats?
A. The filter on the left (Honda).
B. The filter on the right (K&N).
C. The lighting distorts the pleats. The photos should be taken in the air box, where it's dark.
http://dchealy.com/valk/gwfilters-pleats.jpg
Question #2 - Which filter has the most surface area?
A. The filter with 48% more pleats.
B. The filter with fewer pleats.
C. It's a trick question. The surface area is constantly changing due to temperature, humidity, and road conditions.
Question #3 - How is it possible for a filter with less surface area to flow more air?
A. It has larger holes (pores) in the filter media.
B. The filter is removed from the air box.
C. A special oil lubricates the air so it flows faster.
Question #4 - How do larger holes (pores) affect filtration?
A. Larger holes allow more dust and dirt to enter the engine.
B. Dust and dirt won't hurt anything as long as there's plenty of air.
C. What's filtration?
:popcorn:
Please, save mankind:
https://www.knfilters.com/
https://powersports.honda.com/
But remember ", "A small temperature change or a small change in humidity can cause the mass of a paper filter to change by several grams."
Why can't people who don't want to blow for the extra dough just say " I don't want to spend the extrs $" and let it lie
I’m never changing mine so there.
This is fun like an oil thread. But SpencerPJ, back to your original post, yes the filter is dirty and needs replacing.