I added this spoiler myself that I had ordered on the net and only paid $129 delivered and was painted to a perfect match. No drilling or screws just automotive tape. After I installed I tried to pull spoiler off and it did not budge! Love it.
Had some PMs about the spoiler but could not figure out how to answer them there so figure I'll post here.
I added the body side molding myself but purchased the parts from Toyota, think I paid $89. Very easy to install just make sure you get them stright and leave room for the doors to open.
Mud flaps (think I paid $140) I got from Toyota also and very easy to install. I did not have to remove the rear wheels to install but I did have a angled phillips head screw driver which helps alot. I love the flaps
Got the spoiler from Amazon. No directions needed, just peal the tap guards and stick it on, just make sure you put it in the right place because you cannot move it once you stick it on. It does come with two screws if you want to use them but I didn't want to drill holes and it holds very very tightly with them. I placed it on the trunk with the tap guards on and use some paper tape to mark the alingment so I knew where to put it. I used that tape method also for marking the body side molding.
I installed Weather Tech vent shades (4 for $95). I love these because they are flush mount and don't use tape. I got my moon roof deflector from them also ($59).