These Airfilter of the brand DNA are as good as K&N, but a little bit lower priced.
The filters are priced per piece.
Design: Special Top
ID: 50 mm
Length: 87 mm
Outside Diameter Big: 100x75 mm
Outside Diameter Small: 67x52 mm
Flange: 17 mm
Top Style: Rubber top
The filters are also washable. Oil them in and you are ready for the road again! You can also drive through the rain when it's oiled in.