Those holes & pressings are odd. They don't look like they were made with the crude tools that a dealer or DIY owner would have on hand - e.g., a hand-held, electric drill. The cut-out in the metal looks oval - not round (as a drill would cut) - and the indentations around the holes are nicely formed. Both signs of a factory job.
The purpose of these openings is also puzzling. They aren't at the low point on the shock tower, so aren't obvious locations for rainwater drains. Could be where the factory sprayed in rust-proofing, though I doubt the factory ever worried about rust-proofing.
