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 VMP TVS l JLT123 l O/R X l 28x11.50Rx15 M/T Street R's l BMR Suspension l Recaros
03 Sonic Blue 3.8 / 17 Magnetic Fusion Sport 2.7 EB