They are pretty easy to get off. The biggest pita is taking off the insulation under the hood. Those push pins don't come out very easy. The nozzels come off with a pair of pliers from underneath. You will see the catch. I think I remember pushing them toward the rear and they popped right out.
you can take them off with out taking off the lining. just pull out the water tubes. the squeeze the bracket and push up and with other hand help pull it through. Easy once you get the feel for it. no pliers needed.