hey guys, I got for sale a 4.5inch inlet cone-in-cone filter, with a spherical piece in the center, I also have a 4.5 inch inlet to 3inch swirl adapter that it came with, fits perfectly, and a coupler with ait sensor moutned onto it, I dont know the brand, its still fairly clean I used it for half a season, the material looks washable exactly like K&N
