For those who want an update on the UUC short shifter, I posted an update. I have a 2002 3.0 d with 5 speed manual. If you haven't changed the oil in your transmission - something that will improve shifting. BMW's lifetime oil is a good synthetic but it's not forever.

Whether you have a 5 or 6 speed manual, change it and put in Redline MTL, I did and it's much better. Technically the viscosity would call for an ATF but per Mike Miller of the BMW CCA, he's seen that MTL works even better with no adverse issues.

Removing the clutch delay valve (been there, done that) also will make you happy.