is there any way to pass a smog check for sure?

[Maximus96]

i've put a muffler on my car and afraid it might not pass the smog check...any ways to make sure it will pass? thanks

 

[Soybomb]

Mufflers wont change your emissions, just the sound of them, the catalytic converter is the piece that helps clean the exhaust. As far a guarenteed way of passing.....bribery?