Interesting you say the holes are already there... for some reason they have done away with that.
2012 ST has no holes whatsoever in that area hey...
Oh well... out comes the drill soon I guess
Really, interesting.
I wouldn't go drilling through your chassis willy nilly. Yake a look and see if you have tapped holes both sides of the chassis where the tie down hook is.
You may be able to use them with an equalisation strap.