To the OP, Santi is in Spain but he's a super cool guy to deal with. I can vouch for him and I'm sure Gerald (autoXracer) will also. Don't let the fact that he's in Spain prevent you from dealing with him.
Santi, you have to grind all of the tabs on the back down flush. Then use dbl sided tape to attach it. I have the same one on my car. For any guys wanting this on their 11-12 car this will have to be done. Its easy and isnt very time consuming.
I hope you dont mind me posting this here, thought it would help buyers who arent sure.
Thanks jewc! I Haven't been on here in quite some time.. car looks great man! And yea just like jewc said tabs are ground off and use use a 3m double sided tape.. its not hard at all and looks really good!