J3pz: That is a good option and will also free up some extra power in the motor but may not be as effective as stock.

To demonstrate how a fan shroud is effective, Take a old (junk) 12v 3" muffin fan from an old pc and plug it in to 12 volts and feel the air flow moving through the fan.

Now cut the shroud off of it and re check the flow of air. It is now totally useless as an air mover..All it will do is make a mess of the surrounding air..

Edit: Now want to see something really cool, Find a cardboard tube that is 1/6th of an inch bigger than the muffin fan blades. 3" tube should work. Now put the fan inside the tube and apply 12v and hold on to it good...;)

This is now a "ducted fan" and it will not only moves air, but it will create thrust:)

i also think they make the engine look that much better... oh and not to mention they are supposed to be more effective than oem fan

You only need the fan for idling really. If you dont drive 20 miles to work in traffic, you should be fine. It can cool itself effectively once your moving. Mines been off ever since my shroud broke and fell into my fan and broke it. Im planning on just getting an electric fan anyway, and they kinda have a built in shroud. BTW, is there any toyota/lexus cars with radiators similar to the 7m, but with electric fans? id like to adapt one

2005 camry
 

I was in the dealer today getting an intake manifold gasket and saw someone leaving with a plastic shroud for twin electric fans, I asked him for what car and he said 2005 camry. Looks to be the right size.