OK, been in contact with forge about this and got the answer.
Basically there is a difference in the valve due to the adjustment but not for our cars.
Apparently porsche needs to have the vaccum adjustment in the valve but we dont. Its only on the vw part as it fits all the vag engines but the vaccum adjust is of no earthly use so there advice is ALWAYS buy the 007P and save your money
Was bugging me that
