The following are known Action Replay Codes for Rock ‘N Roll Racing on Nintendo Game Boy Advance (GBA).
These codes were also known as GameShark Codes and in most cases will work on both devices.

These codes are for the U.S. version of the game.

Master Code – Must Be On
086b1809
dc306396
55e9c6f5
5b8431fa

Max / Infinite Money
83ae7941
38a9c752

Max Race Points
5a00b473
79094007

100 Points to Advance
43d0c99e
580d22dc

Have Best Engine
75b15235
3a009bc4

Have Best Armor
089d53fc
c0d7dec3

Have Best Tires
516043ff
4bef5de5

Have Best Shocks
312d1ab2
83e6993b