I concur. A different animal indeed. IMHO I consider the PC V when combined with a PC O2 wideband autotune mod is the best insurance for your engine as the other performance mods are installed. Never pay for a tune up again no matter what mods you have now or in the future. Always in perfect tune.I read posts that mention flat spots and poor performance and wonder how long these motors will last in a poor state of tune. Every mod i have purchased came with a warning of running lean unless tuned to suit. More Power = more smiles. Ride on.