Brian - I'm sure Don's right -- $60 for 3 pulls WITH the wideband. I'm guessing you could play with the fuel pressure regulator between pulls if you like as that only takes a few seconds. I'm only running mine for the wideband data - to see what the a/f ratio looks like. I'm happy with the way it's running and it makes plenty of power where I want it to. Just like to know how we're doing on air/fuel. Especially since I'm running the 19# injectors and the 4 cyl. Volvo electric fuel pump.