hello guys, will those ultra racing bar reduce my viva body roll with stock suspension, spring, and etc?

if yes, will the improvement be noticeable? body roll in this car is so damn bad makes cornering sooo uncomfortable.

as starter, which bar(s) should I install first? and mind estimate the price for me?

bicycle owners, anyone of u uses the bike mount (top or rear) on ur viva? pls share some info and pics!