Does having a flowmaster affect a smog check?

I have a 2005 ford mustang. I am due for a smog check. I installed a flowmaster exhaust about 5 years ago. Am I going to encounter any problems with the smog process??|||As long as it has a CARB certification number you are in the clear. I don't see how you would have any problems as long as you left the catalytic converter in place. If it's a "cat back" system you will be fine.