The guy owns an RS500 himself so is clued up enough to know!!
I could always paint them blue but it wouldnt be very fair as he is going to help me out as much as possible anyway.
It also has to undergo a simple co test @ idle just to ensure the cat/lambda setup is working ok (I know I could go closed loop and paint the injectors blue but its still not worth it as the turbo has to go back to standard too)
I'll give Stu a bell in the morning to arrange a setup and get a bit more gen on the L8/lambda issue.