Banks had a system out for the Armada but withdrew it from the market for redesign. The system had very bad drone. I don't know when (or if) Banks is going to market the system for the Armada. In my opinion the Gibson 3" single is the best system for the Armada. I have the SS system on my Armada. I got a nice low end gain and increased passing performance on the highway. The system is a little louder when accelerating, but is quite at crusing speeds (70 and above). I have not seen an increase in mileage.