Ordered the HD0800 K&N air filter. It arrived but there is no way the mounting holes line up with my Stage 1 backing plate bolts. NO WAY. There are 2 near the outside of the face plate and one right next to the cover mounting hole. So I went on the K&N website and entered my information. This is what was returned. K&N Application & Part Search Find all K&N products for a specific year, make, model, and engine size or by part number. All Automotive Motorcycle & ATV Year: 2010 Make: Harley Davidson Model: FLHX Engine Size: 1584 No product shown for your vehicle? Recommend one & we will notify you when it is released! So does anyone have any suggestions. I really want to get away from the paper HD filter.