John Frusciante’s Electro Harmonix Big Muff Pi

This pedal seemed to have directly replaced the “Black Russian” Big Muff Pi that John was seen using on the Californication tour. The US version of the Big Muff Pi was then used during the By The Way tour, and likely during at least a part of the Stadium Arcadium tour.

Sometime around late 2006, people have started noticing that he switched to the English Muff’n, but for the 2022 tour, he seemed to have gone back to the Pi (see John Frusciante’s 2022 Pedalboard).


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