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ATI Super Damper 5.50in Aluminum Harmonic Balancer for Subaru WRX (EJ20/EJ22/EJ25) ATI917991

$358.40

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ATI Super Damper 5.50in Aluminum Harmonic Balancer for Subaru WRX (EJ20/EJ22/EJ25) ATI917991

$358.40

$358.40

Fits Subaru WRX with EJ20, EJ22, and EJ25 engines.

Protect your engine's rotating assembly with the ATI Performance Products Super Damper. Designed specifically to eliminate torsional crankshaft vibrations, this harmonic balancer ensures engine longevity and timing accuracy, especially in high-RPM performance applications. This unit features a 5.50-inch diameter and a weight-saving aluminum hub and shell construction, reducing parasitic drag without sacrificing vibration damping capabilities.

The dual-pulley design is engineered to work with the factory 4 and 5 groove serpentine belt configurations found on Subaru EJ-series Boxer engines. Each unit is tunable and rebuildable, making it a critical upgrade for any built EJ20, EJ22, or EJ25 engine.

  • Manufacturer Part Number: ATI917991
  • Diameter: 5.50 inches
  • Material: Aluminum shell and hub
  • Belt Configuration: 4 and 5 Groove pulleys
  • Fitment: Subaru EJ20, EJ22, and EJ25 engines
  • Damping: Internal elastomer O-rings

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