2 Hour Shaft wall UL

I have a 2 hr. shaft wall and there are 3 - 4" conduits in the wall that stick out past my 2 layers and then turn 90 degrees out of the wall and trying to find a way to keep the 2hr. rating. wondering if I can just put 4 layers of drywall as long as the last 2 are uncut? or can the pipe be stuffed and sprayed with a Hilti product.