Audiofire ported bexes

[FirstOnRaceDay]

I am looking into ported boxes for a 2004 F150 SCREW/ I found a site called audioboxesonline.com and see that they offer a downfire ported enclosure with your choice of an 8 or 10 inch sub/The boxes are brand named Audiofire and I wanna know of anyone out there that has had experience with this box or any like it?/ I am hard up on ported boxes because of the freq. and response they give off. Basically because of the boom I don't believe you can get from a downfire sealed box./ Any comments or suggestions?

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