Speed Devils Online Racing (USA)

Infinite Nitro
This code will also allow you to have nitro on a non-nitro server. If you use the nitro on a non-nitro server you will be booted immediately.
58E76CAF0000000F
Plenty Of Cash
This code will give you infinite cash when playing online. Other players will know you’re cheating by the amount of cash in your account, but all is fair in love and GameShark! – FNG
After the GameShark code is enabled and the game has loaded, remove the GS dongle from the controller to begin game with codes enabled.
2717AC6A05F5E0FF
Plenty Of Race Points

This code will allow you to jump up a class each time you race. Other players will know you’re cheating by the amount of race points accumulated. – FNG
After the GameShark code is enabled and the game has loaded, remove the GS dongle from the controller to begin game with codes enabled.
5167B87805F5E0FF