My powerstroke is a 96 dually auto. I have already deleted the resonator. I am installing the Napa air filter intake I found on TDG. I am adding boost and pyro gauges, along with a downpipe and 4" pipe in place of my muffler. Can anyone give me a guess as to what kind of hp/torque increase these mods will give me before I add a chip or programmer? Thanks.