Subaru Impreza WRX Super Damper

ATI’s Super Damper is engineered for Subaru WRX EJ20, EJ22, and EJ25 engines, providing superior torsional crankshaft vibration damping across all RPM ranges. Designed as a direct OEM replacement, it effectively protects against engine harmonics and supports both four-rib and five-rib serpentine belt drives. This 5% overdriven damper utilizes the factory serpentine belt setup and features laser-etched timing marks for precise adjustments. Certified to SFI 18.1 standards, it is approved for competition use.

Specifications

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