The main reason for doing this is so the ecu would still bolt securely into place as standard as at the mo it is wedged in with a bit of rubber to stop it moving about.

Cossiedad no sorry mate the L6 was faulty thats why when looking for a replacement was recommended to change a L8 instead.

Jon@work does this mean you have done this? if so is it difficult is it simply unsrew it and screw into old case or more fiddly than that?