yes port and polish done correctly will definitely improve performance...
price depending on who is doing it... there is no fixed price for port and polish job...
u can try nastyportflow in usj 1, behind summit.... they have some high precision tools there.... its not like u can try n error when it cmoes to pnp ur car.....
If you in jb can try xh racing,call0197853245.
I did my 6a12 v6 pnp together with 3angle and skim head at xh racing ,jb.price affordable.definately increase hp but need to adjust valve timing.
i'm going to change my car's current bodykit [cs3a] to evo 8,9 and i dunno
the cost of getting 1 pair of evo 8,9 head lamp(smoke), cf bonnet(voltex),cf front fenders,
voltex front...
I heard that Malaysia goin to potong car with 15yrs old's car, if thats really on, how?and what u guys think? specially for lancer/evo456, gonna potong few years later lioa.......not fair la, like that.....