apa thumbs up engine??... never heard of it before... hahaha...
ur stock saga is 1.3L or 1.5L???...
if u dont really go for performance, jz get a 4G15 lor....
if u want something different (more powerful), get 4g91 twincam or 4g92 mivec... both is not legal under jpj... u might face problems getting approval due to different mounting needed to fit the car....
if u want legal, the only engine i know is 4g61t.... it is a 1.6L turbo engine...
*jz for ur info, there are a few who fitted honda vtec engine in saga... but jpj issue, u know i know la*