Things you need to be John Frusciante.
Vintage guitars (yes 57 and 62 strats. He doesn't use the Gretsch anymore by the way)
Vintage Marshall Amps (60s era, he has one that is handwired, no more than 1000 made I think)
Vintage Big Muff Pi and Ibanez WH-10 Wah
He doesn't have a 57 strat, he's got a 55.
55 2TS
62 3TS
61 Oly white
63 Fiesta red
Are those he uses on tour, but the 55 is less commonly used nowadays.
He uses a new big muff pi, and Marshall major for cleans and silver jubilee for crunch. He uses fender showmans with the gretsch WF.
Oh my mistake. His favourite guitar is the 62' 3TS, which Anthony Keidis gave him when he just got back from drug rehab (having sold all his axes for drug money).
If I'm not wrong the 55 strat is maple fingerboard.
That's true. He also has a fender jaguar in red, which he bought for himself just before anthony kiedis invited him to join rhcp again... he used that as a guitar for warming up.
As for the 62' 3ts, the tech or was it himself, confirmed that the pickups weren't original. He used to think it was all original vintage pickups, but after a tech opened up the guitar they discovered that the guitar was fitted with sd antiquities.