Ati Performance Harmonic Balancer - Serpentine Super Damper - 8.900 in OD - SFI 18.1 - Aluminum / Steel - Black - Internal Balance - Mopar Gen III Hemi - Each-918485--Notes: 2015-up Hellcat Supercharged Challenger 10% Over-Driven State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO