Michael in AZ
Easily replaced the factory filter, they are a tad more expensive but they'll allow you to go a few more rides between oil changes.
James K in TX
Everything great except my box K&N XSTREAM YA-4503/bar code 6/3/2015 did not have a washer or the locator plug. Chopped top of OEM and plastic cap plug.
jeffrey in MD
More Air = More Power, this is the single best & Cheapest way to more Ponies without spending a bunch of these-- $$$$$$
Ronald in AZ
A solid 4 star, a 5 star if the price wasn't so high.
Good cover, keeps my primary filter looking new, even after a 3 day dune trip. Expensive but well worth it in my opinion.
ROBERT in UT
Most have love it