Lightweight Crank Pulley Fits Porsche 987 Boxster Cayman 3.4L Agency PowerAgency Power's lightweight crank pulley for the Porsche Cayman or Boxster S 3. 4L, normally aspirated engine, is the perfect bolt on part to enhance the responsiveness and performance of your vehicle. Made in the USA, our CNC Machined pulley is made from Billet 6061 Aluminum modeled from the factory pulley and under sized to add power. The pulley is underdriven by 16 percent and is fully balanced for reliability and longevity. The design of the pulley
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