stock exhaust size on 02 4.7

[02blkram47]

I'm thinking about buying Gibson second hand from a guy and the muffler is 3" inlet and dual 2.5 outlet. what is the stock size of my 2002 4.7? will I need to get a pipe to go from 2.5 to 3" to match the inlet?

 

[02Steve15]

stock is 2.5"...it should just clamp right over