yeah, once you take it off it just never sits the same I suppose. My sidemarkers are a little wobbly and loose after I took off my bumper, but the removal is quite easy. The DIY should get you through it (see below for links), the hardest part like @
Bach415 said is taking off your sidemarkers. Do your best to stay patient lol
Here is the thread I followed to get my bumper off. You will only go up to step 8.
http://scionfr-s.blogspot.com/p/fron...r-removal.html
Also here's a secondary link that pays more attention to the sidemarkers, this was useful as well when I got stuck on how to take them off.
http://scionfr-s.blogspot.com/p/fron...r-removal.html