Originally Posted by Bake
And the pics the noob posted look like photoshop. Like the guy claiming his bike has a factory plastic tank. I call BS.
I'm not about to rain on nbrooks' efforts, but if you look closely, the stock paper filter has a very fancy plastic frame that may have to be replicated...at $$$$$$$ cost by the foam filter vendor. Most foam filters are not much more than a sock or a stocking cap bit of material, and are fairly straightforward to manufacture. Twin Air already makes a filter for the CRF250R street model....but if you look at the parts book, it is a stand alone piece that appears to get sandwiched in in the airbox....quite different from the "L" model....so the L model filter will be way more than the $30 or so for you pay for CRF or XR honda filter assembly. A reuseable "frame" to stretch the foam "cap" over won't be cheap.