Dave,
Glad you are happy with the system!
In all honesty, revving it stopped does it no justice - you need to hear it as it is taking off; sounds like a Hemi should. It also dropped off about 30lbs and may have picked up 15hp too.
These systems are typically an easy install - most are bolt-ons and include all clamps, hangars (usually welded in place), 409 SS mufflers (usually) and in this case, a few outlet options for aesthetics. I don't have a lift, but it was easily installed on the truck with just a pair of ramps - also did a system on the GTA using the same ramps.