im fitting a new vxr actuator to my let turbo.i will set my actuator at let settings but my ecu is phase 1 so shall i still set to standard let setting or just adjust till feels rite?also is it best to replace the vac pipe going to actuator with 3mm vac pipe or keep standard vac pipe?
and finally i have bypassed rear bcs is it better to have it connected so the ecu can control the boost with both bcs?