but theres always the risk of a malfunction as well, such as a boost leak or bad injector...anything to cause a lean condition or that could cause detonation...and boom...like you said the forged internals are more of a safety precaution/cushion just in case. imho the right way to do it would be with forged internals if your gonna be making that much power, better to build it once then take the risk and end up building it twice.