[Crazy_pilot]

Coilovers have adjustable damping levels in the shocks, meaning you can tune how soft or stiff they are.

Single adjustable means that both compression and rebound are controlled by the same knob. Dual adjustable means that compression and rebound are separately adjustable (more of a racing feature).

Camber plates will make the upper mount for the struts adjustable and allow you to control the camber angle. Not a whole lot of point of having them in the rear, you have to strip out the entire rear interior to be able to adjust them every time you do an alignment. I have them on my car and can't see myself ever touching them after I installed them, just way too much work.

Now, everything being said, uber cheap coilovers always make me a bit nervous. One of the most likely reasons is that the shock isn't valved or tuned to specific vehicles, just a generic unit that they put into every system they sell. This means that you're getting the same equipment in a 2900 pound Nissan 240 as you would in your 3500 lb SVX. Obviously that is going to make a difference in the way things work. Just my opinion though, your mileage may vary.