i actually installed the Si spoiler wing on my 2016 coupe LX and i would not recommend installing it. the Si trunk lid has reinforced mounting plates underneath the trunk to support the weight of the spoiler. i did not know about this when i initially installed it and every time i drove over a...
Sorry for the late question, but would you mind me asking the dimensions of the plates you used?
I installed am Si wing on my lx coupe, but the weight of the spoiler made the trunk wobble, especially when going over bumps or a rocky road.
I decided to remove it until I add the mounting plates...