Can anyone point me in the direction of a good review article(s) in regards to the advantages/differences between slip on mufflers vs entire new after market exhaust system for my Dyna 08 Low rider? Thx

 

You want too much! If such a thing existed it would be no good without dyno runs for each option and I haven't seen anyone prepared to go to that cost.

Try narrowing down your options and ask for opinions. This question is just too open for you to get any useful replies.

I know from first hand experience that a 2-into-1 will give better results than slip-ons. Try a Supertrapp supermegs!