Edition Upgrade is available by paying the price difference between your current edition and the edition you need

2L to 4L
100 €
2L->4L
Edition upgrade
Add to Cart
4L to 6L or 6L to UL
250 €
4L->6L or 6L->UL
Edition upgrade
Add to Cart
4L to UL
500 €
4L->UL
Edition upgrade
Add to Cart
UL to FUL
300 €
UL->FUL
Edition upgrade
Add to Cart