Hi all, I would like to tune my Astra as its a bit sluggish, I know it can be chipped but this is out of my price range. I have fitted a K&N 57i kit, Iridium plugs, Ecotek CB26P Valve and peco back box. I have seen hand held units advertised (Bluefin) etc that you plug into the port to tune/detune the car. Does anybody in or around my location have such a device and would be willing to use it on my car if I travel to them. I would be willing to pay an agreed sum for the time etc. Thanks Vince