My Alero PCM isn't too basic and weak. You need HPTuners which is software and an interface to modify the data in the computer. It takes time and effort to decode all the tables and open them up for modification, it also takes skill and tuning understanding to safely and effectively make changes that matter.
Certainly not something that a generic plug-in can do without any knowledge of the vehicle it's being plugged into. Tunes are very specific.
http://obd2scanner.co/new-obd2-chip-...ution-advised/
Also what fuse kits are you talking about? Why are you replacing all your fuses?