HKS Pulley Upgrade Kit For Use w/ GT2 Supercharger Pro Kit 2013-2021 BRZ / 2013-2016 FRS / 2017-2021 86

Unlock significant power gains with the HKS Pulley Upgrade Kit designed for the GT2 Supercharger Pro Kit on 2013-2021 Subaru BRZ, 2013-2016 Scion FRS, and 2017-2021 Toyota 86 models. This premium upgrade enhances your forced induction setup by installing a smaller diameter pulley, optimized for use with E85 fuel to deliver up to +90% more power compared to stock configurations.

This kit is specifically engineered as an optional add-on for the HKS Supercharger Kit Ver.3 (part numbers 12001-KT003/KT004). When paired with E85 fuel, the combination of the pulley upgrade, fuel pump, and injectors can push output to 320HP (+150HP over stock). For users running 91 octane gasoline, it still offers a solid boost to 255HP (+80HP). Note that without E85 or racing fuel, power gains may be reduced.

Ideal for Subaru BRZ and Toyota 86 enthusiasts seeking a reliable, high-performance pulley upgrade to maximize their GT2 Supercharger setup. Enhance your ride’s power and efficiency with this trusted HKS upgrade.