ATI Performance Super Damper

The patented ATI Super Damper is the only crankshaft damper designed exclusively for high performance Chevy engines.

• Eliminates torsional crankshaft vibrations
• Exceeds SFI 18.1 specs
• Black zinc chromate finished
• Tunable, rebuildable, and extremely efficient at ALL RPM
• Laser engraved timing marks

The ATI Serpentine Super Damper contains grooves for serpentine belts machined into the outer damper shell. The dampers come standard with 6 outer grooves for standard OEM drive systems. 8 & 10 grooves are available for supercharger or turbo applications. Serpentine dampers are available in a variety of diameters. Crank hubs may be fitted with a 6 groove serpentine pulley to drive external oil pumps or vehicle accessories.

The Serpentine Series dampers fit all ATI GM-front crank hubs and can be adapted to many engine combinations providing maximum flexibility. These dampers are available in steel or lightweight hard-coated aluminum and come with Laser engraved timing marks. Exceeds SFI 18.1 specs.

• ATI's Super Damper for Subaru WRX EJ20, EJ22 and EJ25 engines
• Dampens torsional crankshaft vibrations at all RPM levels
• Protects against engine harmonics
• Direct replacement for the OEM unit
• Four-rib and five-rib serpentine belt drives
• 5% Overdriven
• Utilizes factory serpentine belt set-up
• Laser-etched timing marks
• SFI 18.1 Safety Certification and are approved for competition use

• Shell Material: Aluminum, Part #916883 5% Overdriven
• Hub Material: Steel, Part #916884
• Inertia Weight: 2.2 LBS, 3-Ring

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