So the other day I noticed that at certain RPMS and certain speeds I can hear my exhaust pipes rattling around. They sound like the welds aare breaking and at slow speeds, it gets annoying. So, later on (maybe not too far off) I will be changing my pipes and muffler. Wanting to go with something smooth sounding but aggressive like a flowmaster 44 or hell maybe even a 50 series dumped before or after the axle. Fairly straight forward right? Well looking on opinions on exhaust pipe sizes and configurations. First choice is 2 into 1 3" pipe to a single in dual out muffler. Second choice is 2 - 2 1/2"pipes to dual in dual out muffler. Third is 2 into 2 with a X pipe into dual in single out. Right now I'm running dual 2 1/4" (yes smaller than stock) pipes to dual mufflers exiting behind the tires. Well the tips are getting chipped and beginning to rust. Might have access to a welder and I know I have access to clamps. And a vehicle lift. So any opinions on which is the most efficient set up? Looking to hear other ideas as well.