For 2013, the 3.5-liter V-6 of the 2012 FX has been replaced by the same 3.7-liter that’s populated the rest of the Nissan/Infiniti range. Power is up to 325 ponies while torque receives a more modest increase to 267 pound-feet of torque. The redline remains at 7500 rpm, while the seven-speed automatic is also a carryover from the 2012 FX.