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
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.
Shipping Information
Use this text to answer questions in as much detail as possible for your customers.
Customer Support
Use this text to answer questions in as much detail as possible for your customers.
FAQ’s
Use this text to answer questions in as much detail as possible for your customers.
Contact Us
Use this text to answer questions in as much detail as possible for your customers.