I'm looking into buyin gauges for my truck probably soon. I really like the way the ISSPRO's look, but what is the difference between EV1 and EV2. I'm not sure which one would be better. I have heard about the pyro not reading right? or am i mistaken? And i would also like to know where to place the boost fitting. I was wondering if removing the intake heater and putting the boost fitting there or the MAP line. Any advice would be appericated.