Hi after some info I'm currently changing my saph from 314bhp t3/greens etc to 380ish spec,fitted t34.63 ran up road went fine obviously not driving hard as will need map but just to check turbo ok,then fitted Siemens 55lb injectors and it misfired when I started it then settled down idles not to bad but misfires when I rev it,disconnected each injector all drop off the same,swapped back to greens runs ok,injectors are brand new so hoping they ok I was thinking they will be just over fuelling due to car map being for greens? If so I will just fit them when I get to the mapper,anyone know if that is right? Cheers