Try an import parts place.
Beru is French and Bosch is German. They are separate companies. Their plug for the 2.5 look almost identical. But with the 4 side electrode plug there is a difference.
The 2 on the left are for a 2.5 and the others are for e-gas. By going from 2 to 4 side electrodes Porsche went from 30k to 60k miles before the plugs need to be changed.
