This pulley is used in conjunction with the ATI CTS-V, Camaro ZL1 overdrive harmonic balancer to increase boost by overdriving your supercharger 28%. This pulley will require a different length serpentine belt & or idler diameter change
Applicable to:
Gen 2 (2009-2015) Cadillac CTS-V
Gen 5 (2012-2015) Chevrolet Camaro ZL1
