fender garnish
 

http://www.ft86speedfactory.com/turn...E#.Wtc_Z3rOWUk

I'm trying to buy color-matched fender garnish and was wondering how to do that by myself? sorry if this has been discussed it already. I heard it's kinda hard and potentially cause some damage to a car. I know it sounds silly but should I just let body shop to install this?

No. You take a plastic kitchen spatula or some similar tool (wrapped with electrical tape or a rag) and simply pop it open along the edge. Just keep going until it comes out. Then pop the new one in. Takes less than 30 seconds.

Fishing wire also works very well. Watch this video:
[ame="https://www.youtube.com/watch?v=yMkT1a_qY34"]How to remove and replace 86/BRZ/FRS Fender Garnishes/Vents - YouTube[/ame]