Invisibility
Pause game play, then press R1, L1(2), R2, L1(2), L2. A sound will confirm correct code entry. Repeat this code to disable its effect.

Lighter cars
Pause game play, then press L1, R1(2), L2, R2(2). A sound will confirm correct code entry. Repeat this code to disable its effect.

No gravity
Pause game play, then press R1, R2, R1, R2, Up(3). A sound will confirm correct code entry. Repeat this code to disable its effect.

Increase time warp
Pause game play, then press R1, L1, L2, R2, Right(3). A sound will confirm correct code entry. This can be repeated up to three times to increase the effect.

Decrease time warp
Pause game play, then press R2, L2, L1, R1, Left(3). A sound will confirm correct code entry. This can be repeated up to three times to increase the effect.

Lowrider
Pause game play then quickly enter the "Increase time warp" code three times. Note: This only works on joyride mode and only on certain cars of a certain team and on certain levels for each car.

Midnight Club: Street Racing cars
Play Midnight Club: Street Racing and save the game. Start Smuggler's Run and load the Midnight Club saved game. You will now be able to use a car from that game.