those are "SS springs", designed for drag racing. they are not ideal for handling because they're too stiff-- the spring rate is much higher than what you would want for a good handling street car and pairing that stiffness with a rear bar will make the car really tail happy (oversteer).
they also have a considerably higher ride height.
have you installed them yet? because you may not like the ride height they have.
can they work, sure. but they may not be optimal for what you're trying to achieve and i definitely wouldn't run a rear bar with them.
