Re: catalytic converter question
^+1 Definitely check the simple things like clamps.
They could be plugged as well. The easiest way is to either buy a catted h-pipe to replace the bad cats and piping, or go loud and buy an off road h-pipe or x-pipe. Only do the off road piping if you don't have strict emissions and don't mind an earth shattering rumble.
12 Black GT500 SVT PP l 2.6 Pulley/Idler l Airaid l o/r X l 305 NT555R's l Recaros l
04 Azure Blue Mach 1 / 03 Sonic Blue 3.8 / 14 Sterling Grey F150 FX4 402A 5.0 / 11 GT500 R.I.P.