No you can add it on later. The clear bra is.. completely clear. You get that tiny line you see if you're pretty close, but it's well worth it for the protection. Mine came with a lot of the front done, but I added on more for the front of my roof. Unfortunately I already took a big stone chip that I had to touch up
At first I was like "I'm not sure I want to risk having an unsightly line on my roof" but trust me.. it's not really noticeable, plus nothing hurts your soul more than when you're drying your car after a wash and see a chunk of paint missing. Get it done dude! Earlier the better, because you get any/more chips.