Mmmm... MyVi? Sure underpowered? Heheheh... I personally think the 1.3 motor has something to give for modders... think DOHC 16V. Anyway, have to see it thru manufacturer's intention, market aim. MyVi is constructed mainly for economy, not for performance (but because this is Malaysia, u'll see the little bug fly like hell on Federal Highway later), and aimed at young executives. So the tuning is like... grandma's drivelaa, watch the fuel consumption. Even the Kelisa's not so fly when the motor is stock. Get a K&N or Racecraft CAI kit, plonk it in, JASMA approved catback and 1.6" full front to back piping... Voila!!! extra hamster power! (but let the warranty period pass first) But just don't expect much out of it though. 1.3 ain't gonna be a GT3 Porsche...