Nissan370

what size is the pulley that comes stock with the stillen supercharger kit anyone know because stillen don't seem to know.

also whats the size of our crankpulley i was told its the same size as the one used on the 350z 5.75"?

thxs

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370z vsr motorsports single turbo/built motor 9.1cr 525rwhp/450rwtq @ 10.5psi (stock maf maxed out)