Vai's effects pedals include a modified BOSS DS-1, Ibanez Tube Screamer, Morley Bad Horsie, Ibanez Jemini Twin Distortion Pedal, TC Electronics G-System, Morley Little Alligator Volume pedal, DigiTech Whammy, and an MXR Phase 90/Phase 100 on the Passion and Warfare album.
Использует педали эффектов: "Boss DS-1", "Ibanez Tube Screamer", "Morley Bad Horsie", "Ibanez Jemini Twin Distortion Pedal", "TC Electronics G-System", "Fractal Audio Axe-FX", "Morley Little Alligator Volume pedal", "DigiTech Whammy", "MXR Phase 90/Phase 100".