Exhaust System 80mm for Replicator

I made the 40mm version...
http://www.thingiverse.com/thing:33630
I used a old 40mm fan that i had in my "old stuff box", unfortunaly the fan died last week.
I noticed that the 40mm wasn't powerful enought(maybe because it was old and re-used).

Nonetheless i kick it up a notch by making an adapter for a 80mm fan.