1 - the 87- have a Mann PCV oil gizmo on the PCV line to minimize the oil
that might go into the turbo. (I put one on my ZDJL to keep the throttle
body cleaner)
2 - there's a pressure damper on the feed into the fuel rail.
Bosch p/n 0 280 161 038
-Jim Lill http://www.vectorbd.com/users/jpl