ATI Street Super Harmonic Damper 7M-GE 7M-GTE Supra Toyota MKIII 1987-92 918525

The patented ATI Super Damper is the only damper designed exclusively for high performance engines. 

• Eliminates torsional crankshaft vibrations
• Exceeds SFI 18.1 specs
• Laser engraved 360° timing marks
• Black zinc chromate finished

Inner and outer shells are available in aluminum or steel contain the steel inertia weight. The inertia weight has six (2-ring design) or eight (3-ring design) computer machined grooves to retain the proper durometer O-rings (dyno tested for each application).


Note : Toyota Supra 1987-1992 7M Inline-6, 600HP or less

Aluminum Shell 

5.67" OD 
3 Ring 
3.60lb Total weight
2.20lbs inertia weight