KFX Performance has performance and OEM parts and accessories for your Kia Optima (Kia Magentis, Kia Lotze). Browse our vast selection of parts for your Kia Optima (Kia Magentis, Kia Lotze), and choose from body kits, turbo kits, cold air intakes, headers, cat back exhausts, short shifters, brake rotors and pads, springs and coilovers, clutches, and much more.