Put a stock AP1 ECU back in it. You may have to go to the dealer to get it to match your immobilizer.
Once the bolt ons are added, then think about a piggyback system or something like that to get it tuned. If it was my cash, I wouldn't waste it on a spoon ecu.

 

The Spoon ECU requires you to bypass the immobilizer, and the Spoon ECU doesn't even make a whole lot of power. Better off sticking with a piggyback or standalone. If it were my car, I'd put an AP2 ECU in there and do a piggyback down the road.

 

Hmmm where can I get a piggy back? And how much should it cost?

 

What are you trying to do with your engine? More power? More power lower? Higher redline?

Different goals require different solutions...