The Leadtek has a great GPU cooler already. I would say leave it on. Now if you had a Visiontek then i would say go for the blorb, because the fan on the Visiontek is very annoying. If you still want to use it on the Leadtek then you have 2 options, run the card for a while to heat up the glue then pry it off carefully. The second option is to place the card in the anti static bag place it in the freezer for about 30 minutes then pop it off. Also if the card has pushpins make sure you push them out from behind the card with a screwdriver, so you dont break them off and can reuse them. If you do use the freeze trick then make sure you let the card dry fully before installing it, because it will get condensation on it from the freezer. But as i said i would keep the standard cooler on it since it is a Leadtek, plus its wont get too hot if its not overclocked.