STM Under-Driven Alternator Pulley with Raised Guides for Evo 4-9 Girodisc NOTE: When installing the screws

NOTE: When installing the screws into the rim just snug them up

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• Precise

• 2" Bolt Hole Center to Center

STM Under-Driven Alternator Pulley with Raised Guides for Evo 4-9 Girodisc NOTE: When installing the screwsThe STM Evo 4 9 10% under driven alternator pulley with raised guides was originally designed to help stop the belt from jumping off at high RPM. This new revision makes the pulley 10% under driven and lighter than stock, which lightens the load on your alternator. Fits all Evo 4 5 6 7 8 9 models and works with OEM and stock replacement belts. Vehicle Fitment: CN9A 1996 1997 Evolution IV CP9A 1998 2000 Evolution V VI CT9A 2001 2006 Evolution VII VIII