Finally getting around to pulling off the intake and replacing all the disintegrating vacuum lines. I had planned ahead and bought all the required parts a couple of years ago. I also bought the little electric solenoids that have the vacuum lines attached to them to replace more as a precautionary move since I had the intake off anyway. Everything was going well until I went to replace the solenoids and saw that the electrical connectors were different. My 93 called for #11741742711 but what I have on my car is #11741277974. The only difference appears to be the connector. Researching the 11741277974 the only E34 I can find that uses it is a E28 524TD. I hate to reassemble everything without replacing these solenoids so will make a call to my parts provider this morning to see if the 874 part is still available without a lengthy wait. Just wondering if anyone else has experienced this.