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ProCycle now has HiFlo Air Filters in stock! Our European TW friends have had access to these for a while now. After much begging and pleading, HiFlo brought some into the USA.



Check them out here:

New Air Filter



Let me know of other products available elsewhere and I'll see if we can get those too!
 

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Discussion Starter #3
When I hold a brand new OEM one next to a brand new HiFlo one, the HiFlo filter foam looks more dense. If I hold them both up to a light source, I can see sparkles of light through the OEM filter and not through the HiFlo filter.



Here is the HiFlo website: HiFlo



When I get my bike back together, I'll test them both on the dyno to see if there is any difference in power?? Now that we have a connection for these, they'll be easier to get then the long wait for the OEM air filters....
 

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When I hold a brand new OEM one next to a brand new HiFlo one, the HiFlo filter foam looks more dense. If I hold them both up to a light source, I can see sparkles of light through the OEM filter and not through the HiFlo filter.



Here is the HiFlo website: HiFlo



When I get my bike back together, I'll test them both on the dyno to see if there is any difference in power?? Now that we have a connection for these, they'll be easier to get then the long wait for the OEM air filters....




Very cool. Let us know what you find out on the dyno.
 

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Interested... lets see what difference it makes on the dyno! The tw is the only bike I have that I have not modified the airbox and probably never will. I have been hoping uni or k&n would come out with one but this may be the ticket. We shall see.
 

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Would the Hi Flo air filter cause the bike to run leaner-vs the stock filter(no air box modifications)?
 

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I have been thinking about this for a while now and have a question. This is the same size as the stock ones so how does it promote more air flow? The only thing I can think is the foam is less dense but wouldn't that allow larger particles to pass through and enter the carb?
 

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Looks like a nice alternative to stock, it should filter better, Performance increase? probably not.
 

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If OEM is showing light through it and the HiFlo isn't....I'd think the HiFlo would be more dense?;possibly run more rich?.
 

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If OEM is showing light through it and the HiFlo isn't....I'd think the HiFlo would be more dense?;possibly run more rich?.
Wouldn't that make it a LoFlo filter??? This is what i've been wondering all along.
 

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HiFlo is the brand name, not what it actually does. I think it should filter air better than stock, but that's about it.
 

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If you are gonna name your filters "hiflo" it kinda insinuates that it will allow more air through. Could just be me but this seems a bit strange.
 

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LOL, Its called "Marketing".....
 

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Did anyone ever figure out if this one is better than stock in any way? I need to get another filter and wanted to see if it is worth the extra money or just pick up an oem filter.
 

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I'd bet it's better than a stocker, I try one when I need a replacement.
 

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Well, I put one in mine and according to my butt dyno, I did not notice any performance difference. I do have some elevation differences to some of the places around the area (a few thousand feet either direction from home) and at the higher elevations, it did not seem to be as short of breath with the after market as compared to the stock filter.



However, I bet that if somebody with data logging computer hooked up to their bike could probably see what the stock filter does as compared to the after market filter with regards to the AFR.
That might show the difference between the two. That is, of course, if the time was available for said person to try it out.
 

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Considering it has been about 4 months since "said person" mentioned putting it on the dyno, I don't think it is very high on the priority list. Guess I'll just get an oem since it is about $9 shipped instead of $16.... or maybe I'll just suck it up and pay the extra $7.
 
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