GrimmSpeed Lightweight Crank Pulley for 02-14 WRX/04+STI

Remove that heavy, ugly, problem-waiting-to-happen stock pulley and upgrade to GrimmSpeed's beautiful lightweight option! Weighs 3.5 pounds less than stock and fits all 2002-2014 WRX and 2004+ STi. Available red, blue or black.

Vehicle Fitment:
2002-2014 Subaru WRX
2004-2021 Subaru STi

Features:
• 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
• Balanced CNC machined 6061 T6 anodized Aluminum
• Includes OEM timing marks for timing verification.
• Available Black, Red or Blue

Purchase Includes:
(1) Pulley

Recommended for Install:
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Important:
Based on GrimmSpeed's analysis, the OEM crank pulley does not act as a harmonic damper found on for example traditional V8 engine dampers. The elastomer portion of the pulley helps dampen some noise from the engine accessories (ie. alternator, PS pump, and A/C compressor) but in their experience, the increase in this noise is in-perceivable.

More from GrimmSpeed:
'In our opinion, the OEM Subaru crank pulley has been a cause for concern ever since its original design. It is relatively 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.

Achieving balance between performance and design while not sacrificing either, it's what you can expect from GrimmSpeed.'