Is ONE PIECE episode 171 filler?
Canon No, episode 171 of ONE PIECE is canon.
#171
The Roaring Burn Bazooka! Luffy vs. War Demon Wyper!
唸る燃焼砲！！ルフィＶＳ戦鬼ワイパー闘
Aired 26 Oct 2003
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