New motorized seat belts with seat belt module. Yes, we rebuild them!
Seat belt pretensioners are getting more advanced lately. They are starting to have their own module that is attached to the seat belt pretensioner. If you are swapping them out and using a seat belt from another good donor/parts car then the seat belts may need to be additionally programmed after you install them in your vehicle. These are usually found on newer GMC, Chevy, Cadillac, BMW, Mercedes-Benz, Audi