This pulley is for NON VVTI 2JZ & 1JZ engines. It will also come standard with the Supravworld Cam/Crank trigger kit when selecting the 12 tooth pulley.
 
The benefit of this billet pulley over the stock OEM GTE item is that it is one peice of solid Steel, unlike the OEM which is press fitted two-peice and prone to failure under higher than stock power levels.