ihave been thinking about putting a glass pack on my truck, i was wondering how difficult it is to put one on, what brands are the best and how loud are they?

 

Cherry Bomb glass packs are fairly loud, you can youtube dodge ram with glasspacks and find a few video's of them.

MagnaFlow makes some glasspacks too, I heard a couple of them, sounded pretty good.

Installation is simple, either hack out the old one and weld in the new one or take it to an exhaust shop.