Curious if ya'll know anything about this Ram Air Box for the PSD, found it on ebay this morning
PSD RAM AIR BOX

 

Yep - it's called the Zoodad mod - never seen it being sold before but that's what it is. Everybody trying to make a buck on the hop-up craze. You can do it for almost free - just cut the hole and put a piece of screen over it to keep out the big bugs.