I am having similar issues getting the strut bar to fit on my 2018 legacy. I contacted SSD and they said the holes for the studs were not drilled to the correct size and that they need to be drilled out to 1/2". I noticed the same problem with it resting on the raised part between the studs so I'm wondering if there is something else wrong with the brackets as well, because it doesn't seem like larger holes would fix that issue. They also suggested I could just torque it down and that it would pull the bracket down but I didn't want to strip anything. Did you have any luck getting yours to fit?