I need to replace my leaking front struts on a 2009 FS Speed, but there are different OE part numbers for the Speed, but aftermarket sellers (e.g. Arnott) do not distinguish a Speed variant in their part numbers and lump all struts together with a normal aspirated Spur in their parts number lists/compatibility.

The Speed has a lower ride height...Any insights on if the parts are interchangeable?
Speed OE Part Numbers:
3W5616039M (right)
3W5616040M (left)

 

Just a guess, but some manuf (I think Arnott included) do not preserve the multiple suspension settings (comfort, sport, etc.) so maybe the differences between the regular and speed models becomes moot with their products?