.216 injectors from the Transporter TDi would give you small gains... An uprated SMIC or FMIC would see you a tiny amount more once mapped...
Are the injectors a direct swap and the ecu would adjust or would I have to have her mapped
again ?
Also, would fmic would you recommend? I assume much like a Turb petrol its finding the balance between increased lag and cooling? Would I be better of increasing airflow instead, i.e fitting an cold air intake/modifying the bumper.