Hi-Flow Catalytic Converters
 

Hi, I own a 2003 Mustang Mach 1.
I already installed a Flowmaster Cat Back.
Now I want to install two Hi-Flow Catalytic Converters.
Is this really worth it?? Will I feel a significant difference in performance?
What are the best Catalytic Converters for Mustangs?
Can you give me the exact model for a 2.25" stock pipe.
Where can I buy them?
Any help will be appreciated.
Thanks,
Carlos

Just getting high-flow cats aren't going to get you anything.
Look at some H\X pipes with high flow cats...