yes, that option was standard.
depending if your model was base or not. check for a combination valve off the master cylinder with a bunch of wires going to it. or if driving on wet or snowy roads , slam on the brakes , if the pedal pulsates you do , and if not , you dont have it.
Yes that option was standard and anything after an 89 before 89 some head and some didn't
Looking for a Used Eighty-Eight Royale in your area?
CarGurus has 42 nationwide Eighty-Eight Royale listings and the tools to find you a great deal.
Search Oldsmobile Eighty-Eight Royale Questions
Oldsmobile Eighty-Eight Royale Experts