I can confirm that my Strano rear sway bar does not clear the Whiteline relocation brackets. The bolt that mount the sway bar ends to the mounting brackets was hitting the relocation bracket. I flipped these two bolt so the bolt head is next to the relocation brackets, but they are still rubbing against each other.
Since I was having clearance problem between the Strano sway bar and Corsa Extreme AB (unable to use the softest setting), I swapped the rear sway bar for the Whiteline version. Definitely carrying more weight, but zero clearance issues.