I got an alignment yesterday and remembered I hadn't installed my strut bar as I left the dealer. I just installed the strut bar and am wondering if I need to re-do the alignment. The strut bolts were torque'd to spec and my friend says I should be fine but I have, what I think are, expensive tires (BFG KDW). Couldn't find any info on 6GC but other forums have mixed answers - some say you should and some say it doesn't matter. Just want to know what the experts think. Thanks in advance.

you don't need to.

Are you talking about the strut rods, which run lengthwise from the chassis to the rear axle carriers, or are you talking about a stabilizer bar/anti-sway bar, which runs laterally from between the axle carriers?

If it's the strut rod, then yes. If it's the anti-sway bar, then no.

I'm talking about the bar that connects the strut towers (see red TRD strut bar in my sig)
I would think the answer is no, I don't have to, because I'm just removing 2 of the 3 bolts to hook this thing up. Just wanted to get a more expert opinion.

NO you don't need to. Nothing is moving when you remove or put the strut bar back on, except for the bar itself.

Ah, strut brace -- no alignment required.