Since u're using espri, basically, u can put hc-e (1.3 efi) engine in your engine bay.....Its legal to that but need to get approval from JPJ/ Puspakom....Deto 1.6 is hardly to get endorsement from the authority/gov nowadays...:(
Last year’s World Time Attack Challenge at Sydney, Australia, was the first of its kind in the world and turned out to be a huge success as it pitted...