Oil Catch Can On Forte 2.4l 5sp Auto NA

I was thinking of adding an oil catch can to my car.

I understand this is added to turbo'd cars, was wondering if anyone has any insight in adding them on daily driver-naturally aspirated cars.

After adding my CAI I personally don't like the idea of having engine gas/gunk (blowby) recirculated back into my throttle body. I do understand this is setup by factory and is most likely for fuel economy and emissions.

Pretty much I have two questions:
-Will I hurt my car in any way if I add an oil catch can to my car (aside from wasting my money) will it decrease fuel economy, fail emissions? make my run rich/lean?

-Anyone with experience running an oil catch can on a NA DD car? Any problems or issues? Better cleaner intake and throttle body?

Thanks.


mods please feel free to delete 2nd post:
http://www.forteforums.com/forums/performance-modifications/5176-oil-catch-can.html