LOst my keys for my s13 went to morningside nissan the parts guy told me to look for the 4 digit key code he said that if that code is gone which can happen to a 13 year old car that i would be screwed luckily it was in there. Other than that your gonna be looking at a 280 dollar lock set from nissan or 50 to 100 from a parts car.
Sorry about your luck
bryce
Got the code . the previous owner marked it in the manual . Found it while checking the documetation I received with the car . LOL .
Will be at the locksmith tomorrow . Will update to let you guy know how this turns out .
ur welcome 
ok everybody , it worked . The guy charged me 20 $ , fresh cut with no problem at all .
I got charged $5 :thefinger:
Of course I did also pay $11 for a new Nissan OEM key