GrimmSpeed Pulley Adapter for Gates Stretch Belt Kit

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.

Here at GrimmSpeed innovation is the standard with every product we release and our pulley is no exception. We have designed the only aftermarket pulley installation and removal tool that works with each style of OEM Subaru pulley as well as our aftermarket lightweight pulley. To take it one step further we have also designed the only compatible aftermarket stretch belt installation kit for all 2008+ Subaru Models.

Features

  • Includes OEM timing marks for timing verification.
  • Balanced CNC machined 6061 T6 anodized Aluminum
  • Decreases rotational mass by more than 3.5lbs over OEM
  • 2008+ OEM Subaru Stretch Belt Install Kit Option

Benefits

  • Factory Fit for a clean install
  • You will see much faster revs as a result
  • Optimum weight to avoid misfire CELs or hesitation

Applications

  • 2008-2015 Subaru WRX
  • 2008-2015 Subaru STI

What's in the box?

  • 1 Pulley Adaptor

Warranty

  • Grimmspeed Limited Warranty

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.

Here at GrimmSpeed innovation is the standard with every product we release and our pulley is no exception. We have designed the only aftermarket pulley installation and removal tool that works with each style of OEM Subaru pulley as well as our aftermarket lightweight pulley. To take it one step further we have also designed the only compatible aftermarket stretch belt installation kit for all 2008+ Subaru Models.

Features

  • Includes OEM timing marks for timing verification.
  • Balanced CNC machined 6061 T6 anodized Aluminum
  • Decreases rotational mass more than 3.5lbs over OEM
  • 2008+ OEM Subaru Stretch Belt Install Kit Option

Benefits

  • Factory Fit for clean install
  • You will see much faster revs as a result
  • Optimum weight to avoid misfire CELs or hesitation

Applications

  • 2008-2015 Subaru WRX
  • 2008-2015 Subaru STI

What's in the box?

  • 1 Pulley Adaptor

Warranty

  • Grimmspeed Limited Warranty

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GrimmSpeed

GrimmSpeed is a premier manufacturer of high-performance automotive parts, specializing in precision-engineered components for Subaru and other performance vehicles. Known for their top-quality products, including intercoolers, exhaust systems, and tuning accessories, GrimmSpeed focuses on enhancing power, efficiency, and reliability. Trusted by enthusiasts and professionals, GrimmSpeed is dedicated to delivering innovative solutions for both street and motorsport applications.

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