I'm sure plenty of you guys are running dual exhaust....So let me know what you got?

Is anyone running "true dual" as in 2 mufflers instead of a 1 into 2?

A old friend of mine had a shop i used to get all of my work done at. Put the exhaust on alot of my trucks over the years. On my current truck ('04 silverado 5.3 4WD) he put 2 mufflers on rather than the 1 into 2. Didnt really know if that would be a little too open for a stock motor w/ an 87 octane tune. Any help would be great not to mention...Im just kinda curious to see what everyone is running with.