Hey guys I’m wondering if it’s actually bad for the motor to remove only one catalytic convertor instead of both. I have the 5.3 and some people are saying it’s bad for the motor to have two different back pressures and bad for it to make two different powers or whatever. I just want to know if it’s actually hurting my motor and if I should take the other one out.

 

If you were going to remove a cat, why remove just one? Yes, you should remove both.