ATI Harmonic Balancer - 6.325" OD - SFI 18.1 - Aluminum/Steel - Black - Internal Balance - GM LS-Series 57BK Professional Motorsports: Ideal for racers

Professional Motorsports: Ideal for racers in various motorsports disciplines seeking top-tier safety

1 auto racing helmet is a great helmet for Youth Graphic Racing

Available with arm restraints for an additional $100

Backing pads are designed to work with sanders that have a 5/8"-11 arbor

ATI Harmonic Balancer - 6.325" OD - SFI 18.1 - Aluminum/Steel - Black - Internal Balance - GM LS-Series 57BK Professional Motorsports: Ideal for racersProduct Description: Harmonic Balancer 6. 325 in OD SFI 18. 1 Aluminum Steel Black Oxide Internal Balance GM LS Series Sold Individually ATI Performance Products is a company founded on innovation, precision and service. ATI harmonic Super Dampers add horsepower and torque to race, street and truck engines. ATI Performance Products is the creation of over 40 years of Transmission and performance component manufacturing and racing experience.