Do a favor for yourself and get OEM, not a cheap imitation. My OEM stickers have been on the car for 8 years and still look brand new with no fade, peeling, etc. They've been through snow storms, rain, dirt, multiple washes, etc. OEM is quality.
Also, for the placement of the sticker (if you get OEM's) is all measured out for you on the paper part of the sticker. All you have to do is line it up and stick on.