Quote Originally Posted by yerrow
actually you are wrong...the excess boost from the turbo is released by a wastegate. BOV's release the compressed air when the throttle is closed not allowing it to get to the turbo

well, the BOOST is technically on the intake side of the engine so excess boost pressure is released by the blowoff valve. excess exhaust pressure is relieved by the wastegate on the hot side thus controlling the boost on the cold side of the turbo.