2017 Legacy limited - tow hitch is too low

[Mr Phil]

New to the forum
I added a hitch receiver to my 2017 Legacy Limited. It sits too low, 8-inches (see photo). Without the weight of an attached trailer or people sitting in the back the receiver bottoms out when encountering my drive way with a steep incline. Is there a rear lift kit I can add to increase the car’s rear height 2-4 inches? What are my other options?
I appreciate your thoughts.
Thankyou

 

[Lou O.]

Air bags or air shocks depending on rear suspension on vehicle...

 

[bmart]

It looks like the car is lowered.