to improve its performance? example,

1.mga D4-d: alam nating weakest na to sa mga CRDis na lumalabas..

2.mga CRDI ng hyundai/kia: some of the powerful crdi's sa atin...


kasi diba most modern EFI-gasolines pwede i-rechipped for more optimal engine output...

ps: mods, kung may related thread na about these, paki merge na lang, thanx!