Wannabe Choppers Air Filter Wave Aluminum for Harley-Davidson Sportster 91-22. The description of this item has been automatically translated. The air filter is made of cast aluminum and is suitable for the following Harley-Davidson models. 91-22 XL (except XR1200) with CV carburettor. The parts are manufactured individually using the sand casting process, so each part is unique. We stock many other custom parts from the German custom forge Wannabe Choppers such as various handles, air filters, tank caps and much more in our shop. The air filter is made of cast aluminum and is suitable for the following Harley-Davidson models: 91-22 XL (except XR1200) with CV carburettor The parts are manufactured individually using the sand casting process, so each part is unique.