You don't re-drill the bracket. Look at the picture of the two piece bracket posted. On my car I did need to shave it, clip one of the corners to get it to clear of the battery box after being shimmed down. It's very tight in there.
In my case I had to switch to Allen socket screws on the close side. I wasn't able able to get a socket on a hex bolt because of the battery box ? There isn't enough room for it.
Check your ground clearance in the front, under the radiator support. If you can make a fist and slide it under, you're ok. If you can't, you're too low. You will wind up tearing out the sheetmetal or even the radiator support bottom on a curb or manhole AND even so, you will now need to be more aware of road obstructions wherever you go from now on.
Whatever you do, don't let a numb nuts, even a valet drive the car for even ten feet UNLESS you are prepared for fifty to a hundred thousand dollars worth of body and chassis damages.