Hello,
Please I would like to know if it is easy to change the front headlights of my r107 American version by the European square-designed headlights (wiring, plugins... and is it necessary to change also the large American bumpers)? Does it fit?
Thank you

it takes about 10 minutes to swap out. Take off the front trim under the headlight (2 screws) take the 3 screws out that hold the light in. Throw the old light in the trash and plug in the Euro. Replace trim. Unbolt ugly turn signal box and toss that. Your done.

Thank you for this consistent explanation and photo. It is a preference, but i would say that the Euro lights are much more beautiful.

Hi guys, I think the Euro headlights are much more beautiful!
I thought the signal lights on sides will match. Those has to change as well?

Also, looking for a pair of euro lights. Please let me know any good deal.
Cheers,

Before you start spending heaps of cash converting....here is what I did recently.
Although on the road & going I am not quite finished/satisfied as I want to have better poly carbonate lenses molded to replace the currently 'modified' glass.

These are Hella 90 projector lights off US Amazon [about $200].
They provide fabulous lighting & are street legal if done properly.
I reversed the cutoff plate in the new low beam lights to get a pattern suitable for RHD. Doesn't need to be done in LHD countries like the US.
These projector lights would fit even better & more easily in the US setup than in the Euro.
All stainless steel & glass profiling was water jetted [$110].

Just be careful of Hella's internet sourced template as it gives the WRONG size for the 4 mounting holes for each light [should be 9.5mm [3/8"] not 14mm].
You only need to cut 3 mounting holes for each light.
2 @ the top with the bottom hole toward the kerb side.
Otherwise the 2 stainless plates are a mirror image

Also US Amazon sourced & fitted were 2 Phillips Daylight 8 [$110] daytime running lights that dim when the headlights are turned on [to be legal this is needed with LED DRL's]
I removed the fog lights permanently & things look cosmetically better.