So if anyone has knowledge of a KIA performance camshaft manufacturer for the theta 2 GDI turbo, please be so kind as to help me out. I have received product that claimed to be for the 15 optima sx-t but was listed wrong. It requires a lobe for the fuel pump that was missing from my last attempt. I see this site references camshaft upgrades for KIA's as being in the top 3 upgrades for the bang, feel free to message me if you have a lead! Thanks!!