[JLMounce]

I don't have any direct experience with that specific kit. UMI does build a good product, but it is focused more towards on-track performance. As a result, it will tend to be pretty aggressive and may be harsher than what you might want for a street car.

You didn't provide any goals on what you're after, so that may or may not fit the bill.

How much power is the car going to have? What is the intended usage? Are you more concerned with cornering performance, or ride quality? How important is the stance to you?

All of these dictate different directions. As an example, these cars with factory style, but upgraded parts like springs and traditional leaf springs can get very low, but the car stops working from a performance and ride quality standpoint. If the intent is to stay with a somewhat traditional setup, if you want the car to work well, you may have to sacrifice on stance. Or you can get the car to work and have a really nice stance, but ride quality will typically suffer.

If you want it all, you're talking about modified or aftermarket subframe in the front and an aftermarket suspension system like a 4 link or torque arm in the rear. Costs grow quite a bit here.