Does anyone know what Kia has in place to achieve the 173 HP? The average 2.4 L DOHC has around 150 HP from other manufacturers. I'm sure that it is several things combined like cams, exhaust, intake and what not, but I am curious about this Variable Intake System. Mitsubishi used to put a 2.4 SOHC in their Eclipse and it output around 150 HP. That's the same as the motors with DOHC and I find it quite interesting. I know what the VIS does, but wonder how effective it is. Any thoughts or info on this would be great. Thanks.