Is the Exedy MBK1004 (kit) original oem clutch for 2003 Lancer OZ ? Is it better than stock or it's exactly the same as original?
Do you recommend any others considering I have not mods at all.

 

Yes, this is an OEM clutch kit. It is about the same as the stock clutch. It is manufactured to OEM specs. Even if you have no mods at all you can get a stage 1 clutch kit from Clutchmasters or Fidanza. Or a HD kid with street disc from ACT. You'll have a clutch with more grip and better engagement.