Emissions equipment causes nominal reductions in horsepower (from 175 hp to 170 hp) and torque (from 180 lb-ft to 175 lb-ft).Both engines feature continuously variable valve timing, modular engine design, microfinished crank journals and cam lobes, molybdenum coated lightweight pistons and electronically controlled throttles.Backing either engine is a choice of 5-speed manual (not available on 2.5