The codes should work with the region specified but may work for other regions as well.
Device Compatibility: Action Replay, CodeBreaker & GameShark
Super Turbo charger fitted (causes great smashes)
801AD542 0007
801AD546 0007
801AD54A 0007
801AD54E 0007
Enable Moster Truck Mode
3004C65E 0040
Race timer always under two seconds
D00499FE 0001
800DA124 0028
D00499FE 0001
800DA194 002E
D00499FE 0001
800DA198 002C
Enable Reduced Gravity Mode
3004C65E 0002
Enable Mirror Tracks Mode
3004C65E 0004
Press select to activate.
D0058286 FFFE
8009E41A 2A00
D0058286 FFFE
8009E412 2A00
Have all Tracks, Cars and Cheats
8004D9D4 FFFF
Enable Faster Cars Mode
3004C65E 0080
Enable Fireball mode (press O to fire)
3004C65E 0001
Enable Bouncy Collisions Mode
3004C65E 0010
Enable Turbo Boost Mode (Press O to Turbo)
3004C65E 0020
Enable Agressive Cars Mode
3004C65E 0008
Infinite time to setup/repair car
8007BFB8 7E40
8007BFBA 0005
8007C238 7E40
8007C23A 0005