it seems that my manifold has had the studs missing for a long time(perhaps before i bought it even. and just recently it started to give the chirping noise(which i thought was DC joint) and now finally its doing the fan belt noise. can this exhaust leak be part of the cause to my engines higher than normal harshness at max boost? since the screaming started, i noticed that the points that my engine resonates thru the cabin, match exactly with the screeching noise from the manifold.