You definitely want to get this PCV driven oil out of your intake system.
Not only does is gum up the throttle body, the unburnt hydrocarbons that remain after the ignition cycle has been completed will cause deposits on your valves, creating "hot spots" that will cause pre-detonation and damage to the valves.
Further, those unburnt hydrocarbons will shorten the life of your catalytic converter.
Someone asked me how many HP you get out of this mod. I told him (he had a 300C) that he will get 345, rather, he will KEEP his 345 HP.