Wow that's crappy. I have three out of three toilet flanges broken here. Going to replace to crappy (crap removing) toilets with the flanges. So much shit to do lately.
Wilson gets a meh from me. The only "wow" factor they provide is the price.
http://www.data-bass.com/systemsMeasurements of different systems for comparison.
Don't think it would be a problem, simple box for mounting the amp with wires to your sub. The amp isn't sealed, so if built into a sub it needs to be in it's own sealed enclosure anyway.
APR tune with upgraded pulley and a better exhaust should help.
Then again if being exciting is getting the rear end loose in a corner, then you might be in trouble. M division and AMG have a cure for that.