Hey guys. The missus has a 99 gc8 wrx which apparently has an OLD Link ecu. It seems to be doing strange things and im wondering whats out there to replace it??

I considered going back to stock but its currently not running an afm and i dont know if the wires in the engine bay for one are still there.. its also running an Sti turbo and fmic which kinda suggests it requires a custom tune to suit. Or maybe not. I dont know.
any info/help would be awesome!!! Cheers.
Chris


Sorry id this is in the wrong place.