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- Supports crankshaft durability in high-performance street and racing applications.
- Controls harmful torsional vibration in LS engine applications.
- Maintenance free design with no tuning or rebuilds required.
- SFI 18.1 spec. Race proven for over 40 years.
- Broad RPM range viscous damping protection.
- Precision CNC machined steel construction.
- Made in the USA.