Hi, Im afraid i dont know the box code but i have a cheap runaround for work at the minute which is a mk1 octavia 1.8t 4x4. I was wondering bar the usual hard work of changing the tunnel is this box and diff a fairly good match to the mk2? I am sure i have read it is a more preferable set up but not sure why. Can anyone give any ideas on if it is and why. Thanks