yeah sounds like they dont know the E38s 4.4 V8 very well, its got multiple timing chains and is a bit more complicated to change out than domestic vehicles chains. you may want to find someone that knows BMWs quite well and works on euros exclusively.
color: anthrecite metallic
wheels: style 89 E66, 19X9F 19X10R
ext. lighting: 8000k D2S & LED plate light
*want to get sport rear diff*