Originally Posted by BlackZeda

For me, since this is my DD and I also had the clutch master cylinder and CSC elimination kit installed it was astronomical! But without all that...

Here is the breakdown:

Wavetrac LSD $1,159.00 w/s&h and tax
Axle Flange (1 needed for NISMO/VSLD) $194.61 w/s&h and tax
Z1 Bearing and Seal kit $279.00
Motul Diff Fluid $41.90
Labor ~$300

Total: ~$2000.00

Extras:
NISMO Diff Cover $148.00
Whiteline Diff Bushings $98.00

Was it worth it? I love my Z and I drive it in the winter, so YES!