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Underdrive Pulley for Porsche 996/997/Boxster 986Brand: RSS The RSS Lightweight Underdrive Pulley is made from 6061-T6 aluminum. Offers improved HP & TQ by reducing drag from the power steering pump, A/C, water pump and alternator.The RSS lightweight underdriven crank pulley is designed for Porsche owners who are looking for a easy bolt-on 7-10 rear wheel horsepower. The CNC machined pulley fits all Porsche 987.1 Boxster and Cayman cars. The idea of the underdrive pulley is that it will reduce demand that the stock pulley puts on the power steering pump at high engine revs. Not only will this preserve the longevity of the pump, it will also improve performance, throttle response, and give the track racer a car to be confident in. Since the pulley is lighter then stock, the rotational weight reduces load on the engine slightly. This pulley kit includes the removal and install tool in addition to a new bolt for easy install. With the inclusion of these tools, you can switch back to the stock pulley if needed for warranty purposes. This is an absolute must for track drivers! Replacement Pully for Original Porsche parts No. 99610211563Fits: Porsche 996 3.4L Porsche 996 3.6L Porsche 997 3.6L Porsche Boxster 986 2.5L
Drive Belt Tensioning Roller.Genuine Porsche product.Fits:Porsche 996 ManualPorsche 997 ManualPorsche Boxster ManualPorsche Cayman 987C ManualDiagram ref No 8
Drive Belt Deflection Roller. Fits:Porsche 996 ManualPorsche 997 ManualPorsche Boxster 987 ManualPorsche Cayman 987C ManualDiagram ref No 15
Drive Belt Deflection Roller.Fits:Porsche 996 Manual Porsche 997 Manual Porsche Boxster 987 Manual Porsche Cayman 987C Manual Diagram ref No 12
Drive Belt Deflection Roller. Genuine Porsche product.Fits:Porsche 996 Tiptronic Porsche 997 Tiptronic Porsche Boxster 987 Tiptronic Porsche Cayman 987C TiptroincPorsche Boxster 986 Manual & Tiptronic Diagram ref No 15
Drive Belt Deflection Roller.Genuine Porsche productFits:Porsche 996 Tiptronic Porsche 997 Tiptronic Porsche Boxster 987 Tiptronic Porsche Cayman 987C Tiptronic Porsche Boxster 986 Manual & Tiptronic Diagram ref No 12