Hi Flo Filtro is the only company i found that makes a factory replacement air filter. Not sure if anyone is still using the factory airbox but i see alot of you guys are burning the old element out. No idea if this is for performance reasons or simply cause you think it was completely obsolete. Picked up mine today, cost was around 18 $ only have to take the "snorkel" tube and the filter seal off your old one and place it on the HiFloFiltro replacement. Part # HFA1503 .... sometimes it's not listed as such but Part # 1011-2627 is the other number if it can't be found on the first #. Ordered it from a local shop