Bama,
If you paid for that tune, I would definately be concerned over the work performed. that fuel line should be much closer to horizontal flat line or being slightly richer on the top end of the rpm scale.
The numbers you obtained are within reason given the type of day, temp, humidity. I personally like the sound of either the hooker or the rinehart the reason I went with the rinehart is the warranty, the chrome and the sound. They are also a stepped pipe which provide the power in the mid range and top end. In the case of the hooker, one of my buddies has them on his roadking and they sound fantastic and when its dark out and he backfires they shoot a blue flame out the tailpipe which is pretty cool.
When compared heads up the Rineharts have always produced better numbers on the dyno for me. Over the last 6 to 8 months with the rear pipe mount change they are having little issues with the pipes and if you happen to have an issue and call rinehart they have always been stand up and very responsive to any issues. For that Bub gets my money. In the 2 into 1 case its D&D or Bassani for the numbers.