from my experience, the passenger's side is easy to do. But the driver's side will be difficult if you have the stock airbox in the way. Unless you can remove the airbox, it'll be tough for you to put it on. I had my gf do it since she has small hands
A forum community dedicated to BMW E46, E90, and F30 owners and enthusiasts. Come join the discussion about M performance, turbo kits, engine swaps, builds, modifications, classifieds, troubleshooting, maintenance, and more!