I agree with the last comment. I got the same input from a pretty good shop and they recommended to run the Magnaflow. There are already dual cats with pretty good size pipe and the exit pipe is 3" on my '97.

The system as a whole is pretty goos except for the actual manifolds. That's where your bottleneck is. I put some Thorley headers on. What a difference. Mopar sells Thorley.

Good luck!

Greg