Ok. It makes perfect sense. I've only messed with my 7.3 and Cummings trucks. I do remember asking "where's the ***kin downpipe?"
Also, he keeps telling me that he "knows" he's got 475hp. We rode in my truck with Sgt IIs a tune that dynoed 405+ and he asked "how much power does that thing have?" I told him It was a hair over 400. Now I'm no performance guru, but if my truck is dynoed and known to make that power there is no way he's making near that when we did a couple 1/8 mile runs and I'm putting my taillights even with his headlights. Both trucks are lifted six inches and on 35s. What would you guess an lly with a bullydog tuner, air raid intake 5" magnaflow would make?