Th K&N is no better than the stock air filter. The only one that makes a real difference is the BMC Race Filter, but it requres a PCIII to work properly
BMC also makes a filter designed for street use, but I'm not sure how it compares to the K&N and the Stock filter, you may wanna look into it. Also, if your getting a custom map, before you do I suggest getting the Graves V-Stacks and possibly the Slide stops, to get the most out of your PCIII
I have a 2005 R6 with a Yoshi RS-3 slip-on and BMC street filter. Althought the tech folks at Yoshimura said I would not have to re-map, the bike ran very lean and rugged with the two mods.
I added a PCIIIusb and had it custom mapped, but it still was running to lean and ragged under 4,000rpm. I changed to a map from PC web-site, the Graves full exhaust with after market filter. It now runs great, still a little ragged in the low rpm's, but get it above 7,000 and best over 10,000 rpm and the bike just rips.
The race BMC will be much to lean even with a PC, it requires other major mods.
Not true at all, my bike pulls hard through the whole RPM range. It doesnt lean out at all with my map, I have slide stops, v-stacks, BMC Race and a PCIII
In the UK club racing scene BMC tend to give better results than K&N.
Mind you a lot of us take out the filter completely (if we have tuned engines) and just run the metal guaze. As long as you coat the airbox with a layer of grease to catch the really small particles and clean it regularly you should not have too much trouble.
Close on the v-stacks, they tune the reverberations of air going into the throttle bodies. The diff lengths "tune" the incoming air to diff RPM's, think those loud ass tuned intakes on rice mobiles.
as for air filters, dunno if you have them in the U.S, but the U.K does i think, try the DNA filters, I've had good results from them on bikes I haven't had success using the other two.
would I have to rejet a carberated r6 if I decide to use a performance air filter, I also have a full exaust system..and do you get a noticable increase in performance.
i'm running a BMC street filter just because it gives good protection and it is a lifetime filter. Also have Jardine slip on, but no PCIII. Bike runs just right with that "street" filter.
By smidsy
"Mind you a lot of us take out the filter completely (if we have tuned engines) and just run the metal guaze. As long as you coat the airbox with a layer of grease to catch the really small particles and clean it regularly you should not have too much trouble."
Hello all, I'm thinking to change my air filter on my yahama r6 2006 and i think that the best option for street going is the bmc. Any idea if bmc or K&N will fit better? I run a PCIII and a termignoni exhaust. I'm very happy with the performance of the bike till now but i always want to give it something more.
Also, another question, the last two times i started the bike in my garrage, the smell from the exhaust is a little bit different. Before, the smell was ''normal'', something like non usable fuel which is go out with the engine start. Now, it comes out like burned oil but i see no white smoke at all. I went with some friends for a ride approx 300 klm and the engine oil is ok. Just to let you know that i use my bike 2-3 times per month for a ride and not everyday. Any idea?
I tested both products, both bought from 4 wheel online. I find the BMC performs better filtration compared with K&N. Did a 5000 kms test BMC filter is way dirty compared with the K&N.
I have a 2006 race R6. BMC race air filter. The sound captured by on board camera is epic. The induction makes you not sure whether to record sound from air filter (tank region) or my full titanium Leo Vince system (tail region).
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