The fitting kit requires cutting when used with the 400 and 550 
fitting is fairly straightforward as the step but the electrics will require someone of experience 
 
What we supply
 
Install kit 301877
550 Thule Step 301842
Relay kit 308200 Designed to automatically retract the step when ignition is turned on
 
Smart and stable installation on a 2007> Ducato/Relay/Boxer van
Easy manual activation without tools in case of power failure
Nice visual finish in line with the contemporary van design
 No sharp edges at front side
Better protection for dust infiltration integrated brushes / cable outlet / lip profile
Anti-slip security with 3M Safety walk
Different widths available : 400mm 550mm 700mm please view my other items
A switch for the connection of an optional warning lamp in the vehicle is supplied as standard, making it impossible to drive away with the step still out.
The fitting kit requires cutting when used with the 400 and 550 
fitting is fairly straightforward as the step but the electrics will require someone of experience