I was charged 150 to install coilovers on my E90 and thats only because i was lazy to do it myself. going rate seems to be about 150-250 depending where you go for install on "regular" cars. I've seen people pay 5-6-700 on just labor on the F10 which is outrageous.
Thanks to this DIY which confirms it for me installing suspension on the F10 isn't any different than on any other car
