and below is the part#28947-4 for 640i coupe, and the approx. lowering are the same as the part#50476 for 650i coupe, they are same F dropped .20 and R dropped .50 , so I'm trying to put #28947-4 on my 640xi gran coupe as my friend put #50476 on his 650xi gran coupe, prob will drop with the same result as him ( if make sense )!!!
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