This K&N Pod Filter has a 3" inlet and is 8" in length. Include the flange and it makes it a total length of 9.75" in overal hight.

It's similer to the K&N Air Filter RC-9410.
Only difference is that this filter is nearly 4" shorter than RC-5106.

K&N Pod Filter -  RC-5106 Specifications
Base Outside Diameter: 6 in (152 mm)
Flange Inside Diameter: 3 in (76 mm)
Flange Length: 1.75 in (44 mm)
Flange Type: Centered
Height: 8 in (203 mm)
Top Outside Diameter: 4.5 in (114 mm)
Top Style: Metal
Weight: 1.5 lb (0.7 kg)