Print in ABS/ASA or better because of heat. Reuses the fans that come on it or get some new 4010 blowers. 2 10-15mm m3's to attach to back of hot end. 2 tiny self taping screws to attach fans to ducts/bracket.
Organic supports.
Set to correct orientation.
Seems to work at least as well as stock at a substantial weight savings
EDIT: was getting some rattling. a little gorilla tape along the top edge of the fan quieted it down
9/17: Added straight duct option
The author marked this model as their own original creation.