I need to know the piping size on the muffler only, is it 2 inches or higher?

Thanks in advance

 

2.5

 

thank you

 

The exhaust diameter from the cat to the Y-Split is 60mm (2 3/8"), the tube diameter from the muffler back (inside the tips) is also 60mm (2 3/8"), and I think the tubing between the Y and the Mufflers is less than 2", but I don't know the exact Diameter.