The STM Evo 8/9 10% Under-Driven Alternator Pulley with Raised Guides was originally designed to help stop the belt from jumping off at high RPM. With the amount of requests for this product from the racing community, STM is very pleased to announce the release! This new revision makes the pulley 10% under-driven and lighter than stock- lightening the load on your alternator. Fits all the Evolution VIII & IX models and works with OEM and stock replacement belts.
Features:
-Billet Aluminum
-Hard Anodized to help resist corrosion
-Lighter than OEM
-10% under-driven
-10% less wear on your alternator
-Works with stock belts
-Raised belt guides
-USA Made
**Please Note: STM's drop ship fee is included with the total shipping cost**
Features:
-Billet Aluminum
-Hard Anodized to help resist corrosion
-Lighter than OEM
-10% under-driven
-10% less wear on your alternator
-Works with stock belts
-Raised belt guides
-USA Made
**Please Note: STM's drop ship fee is included with the total shipping cost**
