hey guys im going to replace my computer because it i think my old one went bad so i was wondering if the a9s is te best oone to buy and what a stock computer is on a 1989 mustang gt fox body ? also is it a biaatch to remove/ install the comp ? thanks

 

the pcm is simple to swap..
pull your passenger side kick panel, pull the carpet and insulation back,
get a (correct me if im wrong) 10mm socket and give er a yank