AP Exhaust. This in total allows AP Emissions Technologies to maintain industry-leading efficiency, productivity, and competitive pricing. Catalytic Converter. The engine types may include 2.4L 2351CC l4 GAS SOHC Naturally Aspirated,2.4L 2362CC l4 GAS DOHC Naturally Aspirat ed,2.4L 2389CC l4 GAS DOHC Naturally Aspirated, 2.4L 2429CC 148Cu.