I went to my local dealer to inquire about the installation of the aero kit on my '07 335i coupe and he said around $4000 with parts, labour and painting. This seemed rather pricey to me and I'm really only interested in the front lip spoiler. Turner sells the part for $300, I could probably get it painted at a body shop for maybe a $100-200 more, and would install it myself. From what I understand this job is rather easy, could I do it without having to jack the car or lift it? I think there are only two bolts underneath that need to be removed and the rest is attached with adhesive tape.