Do these introduce any NVH over stock?Those are Ford engineering numbers, not service numbers. Those are PP arms, only spherical joint is in the rear mounted arm. If you want spherical forward arms we have been doing this for the past 6 years and can't recommend the improvement in driving dynamics enough.
https://www.opmustang.com/store/p280/J&M_Front_Control_Arm_Spherical_Caster_Bearing_-_2015-2019_Mustang_S550_-_ALL.html#/