Need for Speed: ProStreet Codes -

Cheat Mode
Enter the following codes on the "Code Entry" screen in the career menu:

CASHMONEY - $10,000 Added to your account
SAFETYNET - 5 Repair Tickets
HORSEPOWER - Receive Chevelle SS in Career Mode
ZEROZEROZERO - Receive Coke Zero Golg GTI in Carrer Mode
ENERGIZERLITHIUM - Receive Energizer Lithium Dodge Viper SRT-10 in Career Mode
MITSUHISHIGOFAR - Receive Mitisubishi Lancer Evolution in Carrer Mode
MASTERCODE - Unlock all Bonuses
UNLOCKALLTHINGS - Unlocks Bonuses (Including Stage 4 parts)

NFS Carbon Data Bonus
If you have a PS3 NFS Carbon memory save on your PS3, you get a message thanking you for playing previous NFS titles. You will also get three extra repair tickets and a total repair ticket.