Black Anodized Aluminum 9.17" Diameter 18% overdrive pulley
This pulley is used in conjunction with the Lingenfelter CTS-V, Camaro ZL1 overdrive harmonic balancer to increase boost by overdriving your supercharger 18%.
This pulley will require a different length serpentine belt & or idler diameter change.
The L220636509 idler relocation bracket is required to install the 18% balancer pulley.
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