You're gonna have a hard time finding a nozzle long enough to get into the plenum from the EGR port. That port is deeper than any nozzle that i've seen. The only option would be an annular discharge nozzle and that's gonna be spraying nitrous and fuel in the opposite direction of airflow. Back side of the CAI elbow aimed at the TB is the best place if using a nozzle...... or you can step up to a plate and not worry about that anymore.