Some just pull out some you need to pry. Nothing holds it in so it's really just a battle between you and the screen. With the right tools you will win.

With that said you may or may not experience a high idle (900-1000) depending on how your car adapts. With the earlier cars it seems to effect the idle, but only after driving.

My advice is that if you don't have modifications that will necessitate the screen removal, then leave it as it will do more bad then good.