Jonas Posted May 5, 2020 Share Posted May 5, 2020 I came across 3 basic filters. OEM Yamaha Air Filter or paper filters from other manufacturer Unifilter Pre-Oiled Foam Air Filter K&N Air Filter 1. It seems, from reports and You tube, that paper filters protects the engine best, but air can be sucked under the filter if clogged up. You should always use sealing grease (which type???) 2. Can't find any information that oiled foam filter (Unifilter are accepted by Yamaha) will damage the engine in any obvious way. Does anyone, in the forum, have long term experience of oiled foam filter? Should be used off road in dusty areas or on long trips with various condition and trails/roads. 3. Seems to not work properly. Should not be used in dusty areas, only for clean roads, if anywhere ? Small silicon particles seems to pass the filter (you can actually see small holes in the filter behind light). Does anyone have long term experience with K&N filter, with maintained torque and horsepower over the long term? And last question. I have the Acrapovic system on which should gain 1-2 horsepower and maybe 1 Nm in torque. By adding a performance filter, it might gain additional power, but which one should I use? Filter area must be important, but my main concern are protection to the engine. Link to comment Share on other sites More sharing options...
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