Hi Gary,
I think You would need to buy a mappable one. I am the same, Ive a 97 type-r with the apexi Power FC.
Im telling you this but, if your buget can stretch that far. Get an ECU, exhaust with down pipe, some kind of boost controller, induction kit, NGK7 plugs and a remap! You wont know the car.
Best of luck,
Paddy