Workshop specializes in GDi engines

[kinki_kidz®]

Hi there, remember sometime ago there's this thread about workshops that are good in GDi engines, but somehow i cant find it anymore, maybe its pruned or just me :s

anyways can anyone recommend me a workshop/mechs around KL/PJ area that has good knowledge in GDi engines?
seems like there's some minor problem with family's grandis but those workshops near my place cant diagnose whats the problem

thanks alot :_: :regular_smile: