technology and the components INSIDE the engines.

bakit kanyo?

ang civic SiR at ang regular civic ay may parehong 1.6 engine. tig apat din cylinders nila. pero anlayo ng power ng sir sa vti civic.

the secret is in the internal engine design... the sir has more cams, a better air intake, better computer. yung ibang kotse ganun din... minsan parehong engine nga pero magkaiba ang power (4d56 turbo and non turbo).