Simple Q&A D&D 3.5 (by RAW) XXIII

[OMG PONIES]

A282: If you trade away your Grace class feature, you do not qualify for Daring Outlaw or Daring Warrior.

Arcane stunt...replaces: You lose the grace class feature and all later improvements to that ability.

Daring Outlaw...prerequisite: grace +1...Daring Warrior...prerequisite:...grace +1

EDIT: Swordsaged, but keeping the citations.