Overdrive Harmonic Balancer for 2015+ C7 Corvette Z06


$ 699.00$ 589.00

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Looking to spin that supercharger harder and help that monstrous LT4 blower breath a little more fire?!!  Add this lower pulley to the crank and you will increase the supercharger speed by approximately 9% or 18%!


SFI 18.1 Harmonic Balancer for GM 2015 Z06 C7 Corvette