A bit over 2k i think they are.
Put the air temp sensor in the intercooler pipe before the throttle body.
IMO Haltech boost controllers are not the best. Profec B2 is the best you will ever use.
If you are going to use the Haltech one, you will buy it in a kit. Comes with solenoid and dial. The dial is used to increase or decrease boost, a bit old school but it works.