Stock Exhaust System FG XR8 Ute (5.4) / FPV GS Ute (5.0SC)

Does any one know if the factory stock exhaust system from the cat back on a FG XR8 Ute (5.4) is the same as the factory stock exhaust system from the cat back on a FG FPV GS Ute (5.0SC)

Any input would be much appreciated.

Thank you.