Hey guys, today i had new injectors put in my 04 wrx. 720Cc injector dynamics. Then i had it retuned, my tuner said that he suggest that i switch to an aem ebcs because thats what he tuned with. He disconnected my grimspeed manual boost contoller, leaving both lines connected to the wastegate and to the inlet. Now with that said, when spooling the car makes a ticking noise, almost exactly like a cold valve tick. The tick is not present at low rpms, full boost and high rpms, only when the turbo starts spooling.

Mods are :
Injector dynamic 720cc
Grimspeed mbc