I'm thinking about replacing the 13 mm rear swaybar on my Civic with a larger one. Will getting a larger rear swaybar change camber, caster, toe, or any alignment settings?

 

you should be fine, doesnt change any angles

 

the only time a swaybar comes into effect is when a corner is under load from twisting the frame. when you check alignment, there is no way to see this. there is not a significant change you need to make to alignment with a swaybar unless you are **** like that and are trying to do something cool with your traction for autoX or something like that.