to consider the car has 109bhp, an extra 11bhp wont get you anywhere fast enuff.
for 5 thou, get and old school 120Y or KE70 corolla. swapped standard engines (1.2 for 120Y, 1.3 for corolla) to bigger displacement 1.5 engines from C22 vanette or liteace and voila!
you get an FR that's real fun to drive and most probably accelerate faster too. of coz, you will lose at the top end.
not for you to consider this seriuosly though. :lol:
anyway, if RM999 is not that much money to you, go for it. its best if they can demo to you 1st before buying, maybe a test drive after plugged in new ECU...good luck!!