The HKS GT Super Charger Pulley Upgrade Kit for the 13+ Subaru BRZ, 13-16 Scion FR-S, and 17+ Toyota 86 is an upgrade kit for the HKS V3 Supercharger kit (part number HKS.12001-KT003). This kit includes a smaller diameter pulley and corresponding belt to be used with high power tunes on E85 or race fuel.

HKS Supercharger Pulley Upgrade Kit

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The HKS GT Super Charger Pulley Upgrade Kit for the 13+ Subaru BRZ, 13-16 Scion FR-S, and 17+ Toyota 86 is an upgrade kit for the HKS V3 Supercharger kit (part number HKS.12001-KT003). This kit includes a smaller diameter pulley and corresponding belt to be used with high power tunes on E85 or race fuel.

This kit is an upgrade and should only be used with users who need more power, it is less effective on the lower end so a high power build on E85 or race fuel is necessary to see the proper power gains.