can someone explain the thermostat mod? What the process is in making the engine perform better. I guess this is a stupid question for you out there who are inclined but prior to doing my gen II mod, I was limited to oil changes and a k&n drop in. Oh, and I maintain the air levels in my tires too! Just curious, I notice people who use the PP3 often install the 160 degree thermo at same time. Is it a good idea to install one anyway, without the PP3? justify?