No, you don't have to remove your bumper. Where did you buy the Angel eye units from? Did you buy the kit? or did you buy the OEM from the dealer? If you bought the kit from Bekkers or Evosport you don't need to look at BMW tips, just plug & play. If you bought the OEM from the dealer there will be slight electrical wiring needed. I know, I bought the OEM and had my dealer do it for $200. Heres a pic of the OEM Angel eye on my 97 540
