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Yeah, there's really nothing under the cowl that you have to worry about. Your windshield washer hoses will be laying free, that's about it. It comes off in 2 pieces. It just looks a little funky riding around without it.
I removed my cowl and painted it last week. Not difficult. The wiper arms gave me a problem until I figured out that after removing the nut on each one, pull the wiper arm so it is extending away from the windshield, then it slips off the splines easily. If you try to remove the arms with the blades against the windshield, it puts enough of an angle on the splines to keep those suckers locked in place.
On my '07, there are 2 black plastic pins that have to be removed at the bottom corners of the cowl. Next to come off is the rubber seal that runs the length of the bottom edge of the cowl. Easiest way to get these out is to reach under the edge of the cowl and push up with 2 fingers while grasping the top of the pin through the rubber seal and pulling up at the same time:
For the top edge, I guess there are 2 ways to get it off. The way I did it was to "pop" the 2 corner pins by prying up on the top corner of the cowl. From there, I pulled the cowl towards the engine compartment and it "slid" off the remaining pins. Once you have the cowl loose enough to get a hand under it, pull both hoses that go to the wiper fluid squirt heads. After the cowl was removed, then I removed the pins from their holes by
gently prying them out with a screwdriver. You have to take them out and place them back into the cowl before installing. You can't "slide" the cowl back onto them, it would be too difficult.
The other way would be to try and pull up on the cowl at each pin location. That may work just as well, but I didn't try it. I didn't know where the pin locations were at the time. Be careful you don't snap any of those pins... you cannot buy them. My dealer told me if you need pins, you have to buy the cowl to get them.
The rubber seal on the top edge of the cowl that lays against the windshield is re-usable if you carefully take it off.
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