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ATI Subaru EJ20 Super Damper - 917991
Subaru Impreza WRX Super Dampers
- 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
Specs
- Shell Material: Aluminum, Part #916883 5% Overdriven
- Hub Material: Steel, Part #916884
- Inertia Weight: 2.2 LBS, 3-Ring
- Diameter 5.5"
- Weight 6.0 lbs
Part # 917991
Please note: Most OEM cranks are held to +/- .0002" while most aftermarket cranks are held to +/- .0005." Hub bores are tight to accommodate aftermarket cranks and due to this honing may be required as part of the fitting process.
Pairs well with
ATI Subaru EJ20 Super Damper - 917991
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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