I have a Pro-design unit with foam filter, still in an Air Box, was used for about 2 months before I changed out the system I no longer have the Air Box lid though. I also have a Uni Open intake system. I am not really sure what its called but its an aluminum mounting bracket with to Uni pod filters attached to it. It was almost never used. 40 + shipping for either unit. PM me or e-mail me at Lomax660@yahoo.com