C7 Z06 Harmonic Balancer

SFI 18.1 8.75" OD Harmonic Balancer for GM 2015 Z06 C7 Corvette. This damper is fully engraved for setting timing accurately. Easy way to add 2.5 psi more boost to your Z06. 9% Overdrive. 8 3/4" size vs 8 inch oem Ligher than oem damper SFI Approved Comes with new bolt and washer