[Driven5]

Honestly, the bottom line is that you still appear to be jumping to conclusions on something that was stated to "maybe" be the problem, purely out of a lack of having identified other possible causes, despite no actual proof of causation. The ends of the sway bar don't *have* to be shaped the same if it doesn't sit exactly the same... Which it apparently does not.

Perhaps you could provide some photos of the installation, validating both insight into its correctness to the instructions as well as highlighting the problems in question? That would be extremely helpful for actual troubleshooting.

I'd also love to hear a technical explanation of what exactly the M3 arms (or bar end shape for that matter) are supposedly doing to cause an unrelated portion of the sway bar to make contact with an unrelated portion of the steering.