Ok so I am in a bit of a dilema I'm getting 2 different readings for boost one with the map and one with my aem digital boost guage which has 5volt output for logging both are sourced from the manifold . There is about a 3 pound difference .. the arm will read 11-12 at wot and the map will read 8-9.. which one is the more accurate? Any ideas ? It's a 2013 twin turbo lfx .. 3bar map using correct offsets