Hi Guys,

Any of you that have concerns if the DNA filter is good for off- road use or in desert conditions use, please visit the following link:
http://www.advrider.com/forums/showthread.php?t=440368&highlight=FILTERS

and let me know your opinion.

I strongly believe that the above thread is the absolute answer, for existing and future customers concerns if the DNA cotton filter is better than a foam filter for
off- road use..!!!
Waiting for your comments,

Dino Nikolaidis

DNA Filters

This is a tough one. In Holland, the message is spread that the K&N and DNA filters are not as good as paper filters for off-road and dusty conditions. Foam filters are the best but need more maintenance.

I am no expert in filters and can not contribute to the discussion. But I am a little bit suprised that the DNA website does not discuss this issue. Also, wouldn't it be nice if your racing department would show a couple of MX or Rallye riders? I am very interested in DNA's view on this issue.

Just my 2 cents ...

Hi Borus,
I am prepairing a detailed reply to your request.

Thanks

Dino

This thread looks suspiciously like an advertisement...ahem.

xxx

__________________
"Where we're going, we don't need roads..."

JennyDakar.com

Sometime, Jenny, you suspiciously sound like you miss most news that are happening down here in UK. To quickly bring you up to speed, the man that goes by the username DNA is none other than Dino Nikoliadis, MD of DNA Filters Ltd Greece. And guess what? He just joined the forum to promote his products and to put to rest a rumour maliciously spread by DinoJet that DNA Filters were no longer being imported in UK when in fact they are. Furthermore there might be a chance that if and DNA agree on some contractual terms that maybe in the near future, people might even be able to buy those filters directly from if not there will be still a bunch of official UK distributors where these excellent filters can be found.

Thanks for bringing me up to speed Fran - I didn't intend to sound facetious, only that I've seen other threads (admittedly on other forums) that are thinly veiled ads (which most moderators/site hosts don't like)... I'm glad that you have a good relationship with Dino, and are helping to correct any miss-information that might be about...

I look forward to hearing more about his products, and who knows, even trying one x

J xx

__________________
"Where we're going, we don't need roads..."

JennyDakar.com

I do have one question regarding DNA filters, from a different angle than most.

In my case although I like the sounds of the gains from using a DNA (or other) cotton based filter my understanding is that they let in more air (and therefore dust) than a standard paper filter. Given that I'm doing 25k+ miles a year on my bike engine life will be an important factor.
Am I right in thinking that I would be best sticking with the standard paper filter to increace engine life (I'm hoping for 100k miles plus)?

Hi Deiaccord,

First of all thank you for your time and aggressive comments; I have joined the XT 660 forum to answer all requests and concerns that users would have and finally put an end to all the bull�t that people hear, using independent tests, plus tests that we do with our Hi tech equipment.
The post that you have seen at the WWW.ADVRIDER.COM forum amazed us also, not even our advertizing department could do better! That was a brilliant presentation! But unfortunately for our competitors and fortunately for DNA it is 100% true, and we know it very well because we see it every day and know it is time to spread the word, so people will stop thinking that the DNA filter is just another filter that looks like a K&N.
So to start I have attached a test done by the French motorcycle magazine MOTO. Τhe test was done unbeknown to us AND TO ALL THE OTHER manufacturers; the mag also purchased the filters from random stores and no one knew anything until the magazine was published.
The test is in French but you can easily understand it. To guide you thru, they used a Honda CB 1300 S and tested, DNA, K&N, BMC, GREEN and the stock Honda paper filter. They used the test facilities of an independent laboratory called �CETIAT le Centre technique des industries aerauliques et thermiques� the French forum members should know it.
They tested:
� Fitting and sealing of the filters
� Filtering efficiency
� Air Flow
� Performance Dyno tested
� Evaluated the overall quality
� Simulated the actual cost the user would pay for 72.000 km

Well guess what� the DNA filter was best in all tests except the simulated cost�
��..DNA was second with 9 euro difference! But do you care? If the filter you choose to use is First in filtering efficiency, First in overall quality and fitting, First in performance, First in air flow�! Does 9 euro make a difference for 72.000 km of usage?
If you try to divide 9 by 72.000 the calculator displays 0.000125 euro/km thats what you have to pay more to use the very best of all the filters.

And finally you must understand that the DNA filter flows more and performs better because of its DESIGN and the superior materials we use, we at DNA will NEVER produce air filters that have a filtering efficiency lower than 98%, that is the same filtering efficiency you are getting from your Yamaha paper filter with almost half the flow!

I hope you will enjoy reading the attached pdf with the test.

Looking to hear your comments,
Regards

Dino

P.S. stay tuned because we are almost done with some back to back testing of the DNA versus the K&N XT 660 X / R filter and you will be SHOCKED��with the results!

Attached Files

French moto mag filter test.pdf (996.4 KB, 95 views)

Hi JMo,

I have replied to your questions, please see deiccords post.

Regards

Dino

Hi Dino - no problem, I wasn't fully aware of the situation (until CaptMoto explained), and when I see links to anything that is posted on ADVrider, I always take what is said with a pinch of salt...

I'm interested in your filters myself... I presumed it was similar to the K&N system which you also lightly oil with a spray before installation? (I used one of their filters on my XR650R for a few thousand miles, before reverting to the foam and oil type UNI filter for racing...) However, it looks like your system remains dry (like the stock filter) presumably?

I'd certainly be interested in the comparision with your filter & airbox lid compared to the stock Yamaha set-up...

xxx

__________________
"Where we're going, we don't need roads..."

JennyDakar.com