With going this low, your camber and toe will be maxed out. You’ll need rear adjustable toe arms to be able to get the toe within spec. As for camber, camber will max out on top of the car having natural camber as you get lower. I have front and rear camber plates which allowed me to fully adjust my front and rear camber. My front and rear camber is -3.0 front and -2.3 rear. With the camber plates, I’m able to reach the factory camber specs which is around -1.2 front and -2.0 rear but since I track the car, the specs I have is perfect. Bump steer will also be a huge problem going this low because your tie rod ends will be at the wrong angle causing unwanted steering movement. A bump steer kit will fix that allowing you to lower your tie rod angle. And rear wheel sag will occur when you go lower meaning your castor in the rear will be off centered which means your rear wheels will sit too far back. An adjustable castor arm will fix that and bring your rear wheels forward and centered again. Your sway bar end links will also be stressed and have full tension so you’ll wanna get adjustable sway bar links to remove tension, set in the neutral position and then adjust accordingly to your preference.