currently,i'm using gsr 4g93t. all stock except 2.5'' exhaust piping. i'm planning either upgrade to evo or modified my current 4g93t. now, i have rm 4000 extra in hand and there is my friend who want to buy my 4g93t for rm 5000. if i sell, i have rm 9000 in hand. i think should be enough for evo 1 maybe evo 2 ;) for you guys, which one better? go to evo or use Rm 4000 to modified my 4g93t?