The RSS Lightweight High Strength Underdrive Pulley is made from 6061-T6 aluminum. A must for any street or track enthusiast
- Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator without detrimental effects on said ancillary systems.
- Installation wrench included.
- Works on all Porsche 986, 996, 987, 997 models EXCEPT 2.9L (multi hole crank pulley pattern), 3.8L, DFI engines, GT2, GT3 and Turbo.
- We recommend using the appropriate length belt RSS # 6PK which can be purchased on our website.
*NOTE: We recommend using/sourcing a new OEM Crank Shaft Pulley Bolt for your specific vehicle when installing the RSS Pulley. (Not Included with 601 Kit)