More than likely coilovers mate but it is defo lower than 30 is probably guess 50-60 mm..
I may be wrong but check my newbie thread that's mine at 30 mm
What colour mate? eibach and spax are red I think, apex are green, may narrow you're search? They could be older and well settled 30's??
They're red, thought Apex were yellow?
Probably Apex 35mm drop, I've got the same. sits like that.
And probably he has camber adjusters, by the looks of it.
Apex springs are yellow.