I've owned my TJ for 6 months now and I just found out my Cat converter is missing....
The Jeep has been owned by 2 others (according to the title) so I assume one of them took it off. Thankfully I live in Tennessee where we do not have to do an exhaust inspection.
Besides being illegal I have heard a missing cat can affect performance in a negative manner while others have said it increases performace. As I have a 4 cyl so I don't want to "lose performance".
Does anyone have inputs of performance effects of not having a cat and which brand I should use when I get a new one?