I have a 2003 G coupe, dropped it on Tanabe NF210 springs, do I need camber kits to do an alignment? or no?

 

If you want to get back into specs, you will need front and rear camber kits, you can get an alignment without the, and the shop will do the best they can to fix it, but you'll still have to live with excessive wear on your tires

 

^^^What he said.
All they can really do is 4 wheel toe adjustment. Camber is non-adjustable on oem.
They'll adjust for you to track straight, but negative camber will wear the insides of your tires over time without adjustable camber kits.
More drop you have = more negative camber you'll have.

 

Rear camber is adjustable....as springs settle with a new car, camber will change for the worse. Adjusting it yearly should help from getting it too bad.
But if you plan to lower it will require the kits to keep it in alignment.