Removing emission devices is a federal offense and state offense in Texas.
The state fine is $25,000
The federal fine is $2,500 and jail time.
Have fun :)
Also the breather is a pressure style on a focus. All you'll do is be blowing blow by all over your engine bay.
I was having issues with oil on the throttle body plate, so I cut a piece of the line out and slide a lawn mower fuel filer in line and secured it with 2 hose clamps. 6 years later I've not had to clean the throttle plate once
You say because; race car.
I say because; economy car.