Ewan ko sa cost ng oto, bahala ka na. Pero this is what I remember sa modding Lancers medyo budget pero very good on the track and on the road parin.

1.) Engine swap with install labor - 70,000
* complete engine (engine, harness, ECU)

2.) Suspension mods - 50,000
* new gas shocks
* lowering springs
* front and rear strut-bars

3.) Brakes - 12,000
* surplus Mitsubishi front twin-piston calipers and 11 inch discs

These are the basic stuff for your RWYB / fun-car. Plus, you will have to spend on the ff pa:

1.) Really good bucket seats, even the reclinable ones, they make a HUGE difference on the track.

2.) Race grade fluids like gear oil, DOT 4 or better brake fluid, and fully synthetic engine oil

3.) Sport spec or better wear and tear parts like tires, brake pads, clutch

You might also want to invest in stuff like a good shift knob and steering wheel, a good pedal set(for easier heel-toe and double declutches, they realy help!), auxiliary gauges for oil temp, oil press and water temp, a shift light (ricey, but really helpful on the track). All these aim to help driver-to-car interface.

Tapos syempre good driving shoes, good gloves....... Ok ok the list goes on. ;)