Back during Thanksgiving my son-in -law turned my bike over. One of the things that was damaged was the oval filter on the Thunder Hurricane intake. At the time I ordered a replacement from Thunder manufacturing for about 40 bucks. I still don't have it. I sent them an E-mail and they never responded. I'm having trouble finding someone else that would sell just the K&N filter for this unit. Does anyone know of another vendor that carries this part?