The following are known Action Replay Codes for S.C.A.R.S. on Sony Playstation (PS1).

The codes should work with the region specified but may work for other regions as well.

Device Compatibility: Action Replay, CodeBreaker & GameShark

Have All Challenges
801f58d40001
801f58d60001
801f58d80001
801f58da0001
801f58dc0001

Have All Cups/Tracks
801295d00001
801295d20001
801295d40001
801295d60001

Have All Cars
801f72fa0001
801f72fc0001
801f72fe0001
801f73000001