It's called air ride. I'm sure others will explain the setup better than me but essentially it's bags as suspension with a tank mounted in the boot. You have a controller pad up front that you can lift or lower the car. It's a low car scene thing. Think it's roughly 2k to buy
I have it on mine, bags replace standard suspension, controller controls ride height/pressure in the bags, air tank in the boot with a compressor or two to refill the tank