Mazda MX-3 with Two Turbocharged KL-ZE V6 Engines Ty has owned his 1991 Mazda MX-3 GS for four years and modified a lot in that time. He started by replacing the factory 1.8 L K8-DE V6 with a 2.5 L V6. Then he moved the 2.5 L V6 to the back of the c...