Do I have to remove the sub frame to change the electric rack and pinion on the 200s

First, make sure you know it is the steering gear that is needing to be replaced. The job in any case is not quick or easy. Do you have a 2WD or AWD 200? All models require removing the front crossmember to access the gear. Make sure you obtain a workshop manual with instructions before starting to repair anything. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops