Just put a set of the Ford Fuel Injectors in my E34 '92 535i. Took about 2-3 hrs. Seems to idles smoother, and can tell small increase in power. Followed Gail’s instructions (thanks Gail) and didn't even break anything else in the process. Not bad for $70. Boy, this doesn't mean I have to put a ford sticker on the back does it? Richard V '92 535i 5 speed, calypso red, chipped, and powered by ford....:>)