Well, first of all, a strut bar isn't a swaybar.
Strut bars/braces reinforce the chassis while swaybars connect the left suspension to the right suspension so that roll is decreased & everything else sort of stays the same. Check the sticky posts.
& I don't know anything about Preludes, so I'll leave the rest to everybody else.
& I don't know anything about Preludes, so I'll leave the rest to everybody else.