ATI

- Eliminates torsional crankshaft vibrations - Exceeds SFI 18.1 specs - Laser engraved-etched timing marks - Black zinc chromate finished - Power steering pulley is 11% UD. 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). Typical Belt Sizes need for this damper:PS:  3PK855...

Does not fit when using a 54C oil pump - 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). ...

Does not fit when using a 54C oil pump - 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). ...

This will fit the R33/R34 RB25DET. We take the RB26 Street Damper and machine the power steering pulley so it will work on the RB25.