Get MIVEC 1.6 engine.
Save petrol and got enough power.
If u really want a GO, get VR4 2.0L Turbo. Can easily reach 240km/h. but a bit (maybe a lot) melayang feel with standard suspension system.
If the mod too high compare to original version engine, u need to spend a lot on braking system and suspension. Dont get the cap ayam one.
If cheap mod on stock engine try to put SURBO +- RM170 jer but it improve accerleration + k&n air filter. Cukup dah