IGNITION WIRES
A few year back, I bought the 8mm ignition wire set from Bavarian autosport. Upon installation the tach started occillating, as in the tach needle jumping wildly, with the car not accelerating properly. As soon as the original wire set was reinstalled, all symtoms disappeared and car operation was back to normal.
Some of Bavarian Autosport parts are not oem, even though they list the original BMW's part numbers next to the parts. Also, lately, I have had some delivery issues with that company, so beware.
Albert
72 3.5 CSi
88 M6