Planning to get a new car soon, but human wife said she wants us to keep the machine wife (AE101). I asked if I can pimp it then, she said ok. 
I did some research, but not sure correct or not... JPJ can only allow engine upgrade up to 30% power right? So 1.3 engine can only upgrade to 1.6 engine?
Engine: Seems like 4A series is the best?
But 4A-GE 20V BLACK TOP vs 4A-GZE which one is better?
ECU: What can this do? If upgrade, the car performs better?
Tyre: R17 45 215 best fit?
Turbocharger: GT2860R. But legal or not? More horsepower?
Body Kit: I prefer to be powerful inside, but looks sopan outside. As long as look neat, clean, minimalist, then it's the best.
Lamp: Since the lamps all old already, any nice, attractive and legal lamps for front and back?
Dashboard: My speedometer kong already. Need to change.
Audio System: What's good nowadays? Bluetooth? USB? Wi-Fi??
Budget: I can fork out budget as long as the quality is good and can make the AE101 really nice and still legal.
Thanks!

I did some research, but not sure correct or not... JPJ can only allow engine upgrade up to 30% power right? So 1.3 engine can only upgrade to 1.6 engine?
Engine: Seems like 4A series is the best?
But 4A-GE 20V BLACK TOP vs 4A-GZE which one is better?
ECU: What can this do? If upgrade, the car performs better?
Tyre: R17 45 215 best fit?
Turbocharger: GT2860R. But legal or not? More horsepower?
Body Kit: I prefer to be powerful inside, but looks sopan outside. As long as look neat, clean, minimalist, then it's the best.
Lamp: Since the lamps all old already, any nice, attractive and legal lamps for front and back?
Dashboard: My speedometer kong already. Need to change.
Audio System: What's good nowadays? Bluetooth? USB? Wi-Fi??
Budget: I can fork out budget as long as the quality is good and can make the AE101 really nice and still legal.
Thanks!