i have an Afe Intake Magnum Force Stage 1 Cold Air Intake System Type Cx bought on november 2007 made for BMW X5 E53 (01-06) V8-4.4L 4.8L. Retails for $382
http://www.afefilters.com/IntakeSytemstest.php
Thinking of going back to stock and will just need a new breather to install my OEM airbox back. Thought anybody might be interested before i purchase breather from dealer. Thinking of selling it for $275 shipped or OBO. What do you guys think?