Max Net Lift: 13.5mm (w/ Ferrea Valve Spring Assembly) Aluminum-Magnesium CNC machined Stock rocker assembly mass: 268grams. Ferrea rocker assembly mass: 138grams (51% less mass than factory rockers) Stock fulcrum mass: 97grams. Ferrea fulcrum mass: 74grams. Can be used with stock or any aftermarket camshafts. Uses center large lobe only, must use reprogrammed ECU or stand alone ECU tuning system.
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