Consider it just luck then, bad luck.

You can get a stage 1 clutch from Competition Clutch for $450

http://competitionclutch.com/dsp_par...hp?vinvid=3789

Figure its prob around $500-600 for labor to install a clutch in a G35.

so that sounds about right.

you could always call the dealership an find out what they charge.

What are your syptoms, why do you say its a bad clutch