Seller is helpful but the compressor will not get you 3 psi of pressure. You are lucky if you get 1 psi. This is the design of the motor. You think it will get 12v, but it actually only get 5-6v from the databox. For 300$ you expect it to work as description say, but it does not spin at 32000 RPM. I can hear it.
Very mild improvement. Until they release a higher powered system , you are not expecting a huge difference.