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465 Posts
USE THIS INFORMATION AT YOUR OWN RISK
Although not currently listed for the R25/R3 the K&N YA-5008 is as close to the OEM air filter that they offer and they will likely not make one specific for our model because this one is so close.
My non scientific measurements (wasnt far off whats listed on their site)
YA-5008 OEM
Length 5.85" 5.95"
Width 4.36" 4.43"
Flange at rest .486" .490"
Flange compressed .400 .350
A tenth of an inch difference on dimensions is negligible, especially as the opening below the filter is roughly 4.40" x 3.60" so there is lots of sealing overlap.
After a test ride and all I can say for sure is I cant tell a difference other than maybe a change in the drone between 6500-7000, but an air filter 99% of the time wont make any perceivable difference.
Although not currently listed for the R25/R3 the K&N YA-5008 is as close to the OEM air filter that they offer and they will likely not make one specific for our model because this one is so close.
My non scientific measurements (wasnt far off whats listed on their site)
YA-5008 OEM
Length 5.85" 5.95"
Width 4.36" 4.43"
Flange at rest .486" .490"
Flange compressed .400 .350
A tenth of an inch difference on dimensions is negligible, especially as the opening below the filter is roughly 4.40" x 3.60" so there is lots of sealing overlap.
After a test ride and all I can say for sure is I cant tell a difference other than maybe a change in the drone between 6500-7000, but an air filter 99% of the time wont make any perceivable difference.

