GrimmSpeed Pulley Adapter for Gates Stretch Belt Subaru 2008-2014 WRX / 2004-2020 STI

The OEM Subaru crank pulley has been a cause for concern ever since its original design. It is extremely heavy, susceptible to catastrophic failure, and quite unsightly. Continuing to use this on our cars just wouldn't do. Eliminating rotational mass while maintaining a safe presence can increase reliability and bring faster Rev's! For our Lightweight Crank Pulley we pulled out all of the stops. CNC machined from 6061 T6 Aluminum our pulley makes no compromise. It weighs in at 3.5lbs lighter than OEM while at the same time increasing its durability. Marked with a timing mark and perfect cut keyway makes this install a breeze. We designed the pulley with the optimum weight for performance while avoiding misfire CEL's and engine hesitation.

• Decreases rotational mass more than 3.5lbs over OEM (You will see much faster revs as a result)
• Factory Fit for clean install
• Optimum weight to avoid misfire CELs or hesitation
• 2008+ OEM Subaru Stretch Belt Install Kit Option (No other company offers this Optional Add-On)
• Balanced CNC machined 6061 T6 anodized Aluminum
• Includes OEM timing marks for timing verification. Achieving balance between performance and design while not sacrificing either, it's what you can expect from GrimmSpeed™.