Aftermarket Air Filters

TA_GunSurgeon

TA_GunSurgeon

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I'm sure this has been asked before, but I'm new to the boards and didn't see a posting about this. I'm on the fence on what air filter to get for my 08 Busa K&N or BMC Racing? They are about the same cost I think BMC is a little more expensive. Anyone know wich is better? I ran K&N in my last bike, but alot of the parts guys I've talked to are recommending BMC Racing. Is there even a big difference between the two? Sorry if this is a repost!
 
BMC is better than stock
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BMC filters are more expensive then K&N, and from Ivan's performance there is no difference in power between after market and OEM filters on the dyno.
 
Don't think either are out yet, so I went with DNA. More expensive, but available. I wouldn't say OEM is just as good,the cloth material flows better than paper, + the aftermarket has more surface area also(at least on the DNA).
 
how is an oil soaked cloth filter better than a dry paper one?


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K&N Facts
Here's an article from K&N that explains it. I guess you could also put a paper sack over your head and try and breathe through it vs. putting a shirt over your head and doing the same.
 
Put a BMC on mine and was happy with the results
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It's best to improve the breathing at both ends and adjust the fuel to match for ultimate results tho. In other words exhaust/filter/pc for the real grins.....
 
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