Question 1 - you already get better than 315hp. Lots of people have had their dyno'd showing result close to 350 without mods. The Q uses premium gas only so it probably has a computer tweek. Larger exhaust, air intake will give you a boost.paulgator68 said:The QX56 has 315hp but the Armada has 305hp....can any mods be done to produce the extra 10hp for the Armada? This sounds possible since the motor is the same. I have a 04' Armada SE, Tow Package, Sunroof Package, Leather. Can the automatic rear liftgate be added by the dealer? Also, Where can I get some custom V8 logos for my 04' Armada?