Super Damper® Harmonic Dampers
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Subaru Super Dampers
The patented ATI Super Damper is the only damper designed
exclusively for high performance engines.
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Eliminates
torsional crankshaft vibrations |
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Exceeds
SFI 18.1 specs |
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Laser
engraved timing marks |
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Black
zinc chromate finish |
Subaru Impreza WRX Super Dampers
PRICE: $398
ATI Performance Products, Inc. is proud to introduce its
renowned Super Damper for Subaru EJ20, EJ22 and EJ25 engines
-- Part # 917991. Unlike undampened underdrive pulleys,
which offer no protection to high performance engines,
the ATI Super Damper provides balanced dampening of torsional
crankshaft vibrations at all RPM levels. The ATI Super
Damper comes with laser-etched timing marks and is a direct
replacement for the OEM unit. The ATI Super Damper is
a critical component for all high performance cars to
help protect against engine harmonics and features a dual
four-groove serpentine belt drive on the outer shell to
utilize the factory serpentine belt set-up. All ATI Super
Dampers exceed SFI 18.1 Safety Certification and are approved
for competition use.
Damper Part Number: 917991 - Comes complete.
Components
Hub:
916884
Outer Shell: 916883
Inertia Ring: 916973
Bolt Kit: 950210
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ALUMINUM
SHELL |
CRANKSHAFT
HUB
PART NUMBERS |
5.5"
OD |
3
RING |
STEEL |
TOTAL WEIGHT
INERTIA WEIGHT
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3.60
lbs
2.20 lbs |
| DAMPER
ONLY - LESS CRANKSHAFT HUB PART NUMBERS |
| CHEVROLET
BOLT CIRCLE |
916883 |
AVG
WEIGHT
2.0 LBS |
| INTERNAL
BALANCE DAMPER ASSEMBLY PART NUMBERS |
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IMPREZA
WRX
EJ20, EJ22, EJ25
4 CYL |
917991 |
916884 |
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