I am looking ahead to fitting a Scorpion exhaust.I will need to remove the Lambda and to avoid twisting the 4 wires when unscrew from exhaust I reckon I need to separate the connector block which is behind the trim plate.The "block" appears to have 3 "nibs" which lock the 2 halves together,if I am correct how do you serarate the 2 halves? Advise please as I don't want to be stuck at the first stage.Regards Brianj.