John my boost stick produces less boost when its pluged in and more when its not. Checked all connections and thier tight. I.E. Banks six gun/speed loader is set on 3 when towing 8000lb trailer usually get 25 psi boost now with boost stick plugged in it only goes to 18psi. I think I read at one time truck had to be under load for this to work. Is 8k lbs not enough load? Also truck seems to have less power and the go pedal is slower in response. I know its Sunday and I dont expect a reply today it can wait til monday. Thanks in advance. Enjoy the superbowl and the family.