Customer sent in a video of his exhaust kit.  Putting this up for those wanting to know what it sounds like.  He didn't use the x-pipe.  
Here is the setup specs:
Exhaust system: Hooker competition headers, 2.5 to 2.5 reducers, pypes catalytic convertors, pypes mufflers, and pypes 3in tailpipes. 
Exhaust movie for PN SGT80 Chris Lucas
www.73-87chevytrucks.com
www.captkaoscustoms.com
Project Su
Jimmy 2WD Project